1013131023 has 8 divisors (see below), whose sum is σ = 1351039536. Its totient is φ = 675321600.

The previous prime is 1013130971. The next prime is 1013131073. The reversal of 1013131023 is 3201313101.

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

It is not a de Polignac number, because 1013131023 - 2⁶ = 1013130959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013130993 and 1013131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013131073) 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, 3793 + ... + 45173.

It is an arithmetic number, because the mean of its divisors is an integer number (168879942).

Almost surely, 2^1013131023 is an apocalyptic number.

1013131023 is a deficient number, since it is larger than the sum of its proper divisors (337908513).

1013131023 is an equidigital number, since it uses as much as digits as its factorization.

1013131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49545.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1013131023 is about 31829.7191787801. The cubic root of 1013131023 is about 1004.3579880180.

Adding to 1013131023 its reverse (3201313101), we get a palindrome (4214444124).

The spelling of 1013131023 in words is "one billion, thirteen million, one hundred thirty-one thousand, twenty-three".