1101203401 has 2 divisors, whose sum is σ = 1101203402. Its totient is φ = 1101203400.

The previous prime is 1101203393. The next prime is 1101203431. The reversal of 1101203401 is 1043021011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1009714176 + 91489225 = 31776^2 + 9565^2 .

It is an emirp because it is prime and its reverse (1043021011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101203401 - 2³ = 1101203393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101203431) 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 as a sum of consecutive naturals, namely, 550601700 + 550601701.

It is an arithmetic number, because the mean of its divisors is an integer number (550601701).

Almost surely, 2^1101203401 is an apocalyptic number.

It is an amenable number.

1101203401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101203401 is an equidigital number, since it uses as much as digits as its factorization.

1101203401 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1101203401 is about 33184.3848971169. The cubic root of 1101203401 is about 1032.6564167266.

Adding to 1101203401 its reverse (1043021011), we get a palindrome (2144224412).

The spelling of 1101203401 in words is "one billion, one hundred one million, two hundred three thousand, four hundred one".