131023013103 has 10 divisors (see below), whose sum is σ = 195725735744. Its totient is φ = 87348675348.

The previous prime is 131023013059. The next prime is 131023013111. The reversal of 131023013103 is 301310320131.

It is a happy number.

It is not a de Polignac number, because 131023013103 - 2⁸ = 131023012847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023015103) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 808783951 + ... + 808784112.

Almost surely, 2^131023013103 is an apocalyptic number.

131023013103 is a deficient number, since it is larger than the sum of its proper divisors (64702722641).

131023013103 is an equidigital number, since it uses as much as digits as its factorization.

131023013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617568075 (or 1617568066 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131023013103 its reverse (301310320131), we get a palindrome (432333333234).

The spelling of 131023013103 in words is "one hundred thirty-one billion, twenty-three million, thirteen thousand, one hundred three".