1013023553 has 4 divisors (see below), whose sum is σ = 1013948100. Its totient is φ = 1012099008.

The previous prime is 1013023537. The next prime is 1013023559. The reversal of 1013023553 is 3553203101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 737231104 + 275792449 = 27152^2 + 16607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013023553 - 2⁴ = 1013023537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013023559) 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, 460628 + ... + 462821.

It is an arithmetic number, because the mean of its divisors is an integer number (253487025).

Almost surely, 2^1013023553 is an apocalyptic number.

It is an amenable number.

1013023553 is a deficient number, since it is larger than the sum of its proper divisors (924547).

1013023553 is an equidigital number, since it uses as much as digits as its factorization.

1013023553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924546.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1013023553 is about 31828.0309318688. The cubic root of 1013023553 is about 1004.3224736350.

Adding to 1013023553 its reverse (3553203101), we get a palindrome (4566226654).

The spelling of 1013023553 in words is "one billion, thirteen million, twenty-three thousand, five hundred fifty-three".