1013111553 has 8 divisors (see below), whose sum is σ = 1364741728. Its totient is φ = 668444544.

The previous prime is 1013111543. The next prime is 1013111581. The reversal of 1013111553 is 3551113101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1013111553 - 2⁹ = 1013111041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013111503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1740451 + ... + 1741032.

It is an arithmetic number, because the mean of its divisors is an integer number (170592716).

Almost surely, 2^1013111553 is an apocalyptic number.

It is an amenable number.

1013111553 is a deficient number, since it is larger than the sum of its proper divisors (351630175).

1013111553 is an equidigital number, since it uses as much as digits as its factorization.

1013111553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481583.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1013111553 is about 31829.4133310685. The cubic root of 1013111553 is about 1004.3515541759.

Adding to 1013111553 its reverse (3551113101), we get a palindrome (4564224654).

The spelling of 1013111553 in words is "one billion, thirteen million, one hundred eleven thousand, five hundred fifty-three".