1011403201 has 4 divisors (see below), whose sum is σ = 1011474432. Its totient is φ = 1011331972.

The previous prime is 1011403181. The next prime is 1011403213. The reversal of 1011403201 is 1023041101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1023041101 = 5381 ⋅190121.

It is a cyclic number.

It is not a de Polignac number, because 1011403201 - 2⁷ = 1011403073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011403271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241 + ... + 45406.

It is an arithmetic number, because the mean of its divisors is an integer number (252868608).

Almost surely, 2^1011403201 is an apocalyptic number.

It is an amenable number.

1011403201 is a deficient number, since it is larger than the sum of its proper divisors (71231).

1011403201 is an equidigital number, since it uses as much as digits as its factorization.

1011403201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71230.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1011403201 is about 31802.5659499355. The cubic root of 1011403201 is about 1003.7867097300.

Adding to 1011403201 its reverse (1023041101), we get a palindrome (2034444302).

Subtracting 1011403201 from its reverse (1023041101), we obtain a triangular number (11637900 = T₄₈₂₄).

The spelling of 1011403201 in words is "one billion, eleven million, four hundred three thousand, two hundred one".