1013045123 has 4 divisors (see below), whose sum is σ = 1016811360. Its totient is φ = 1009278888.

The previous prime is 1013045093. The next prime is 1013045149. The reversal of 1013045123 is 3215403101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1013045123 - 2¹⁶ = 1012979587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013045095 and 1013045104.

It is not an unprimeable number, because it can be changed into a prime (1013045323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882715 + ... + 1883252.

It is an arithmetic number, because the mean of its divisors is an integer number (254202840).

Almost surely, 2^1013045123 is an apocalyptic number.

1013045123 is a deficient number, since it is larger than the sum of its proper divisors (3766237).

1013045123 is an equidigital number, since it uses as much as digits as its factorization.

1013045123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766236.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1013045123 is about 31828.3697823184. The cubic root of 1013045123 is about 1004.3296018279.

Adding to 1013045123 its reverse (3215403101), we get a palindrome (4228448224).

The spelling of 1013045123 in words is "one billion, thirteen million, forty-five thousand, one hundred twenty-three".