131513501023 has 2 divisors, whose sum is σ = 131513501024. Its totient is φ = 131513501022.

The previous prime is 131513500999. The next prime is 131513501051. The reversal of 131513501023 is 320105315131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131513501023 - 2⁹ = 131513500511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131513501723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65756750511 + 65756750512.

It is an arithmetic number, because the mean of its divisors is an integer number (65756750512).

Almost surely, 2^131513501023 is an apocalyptic number.

131513501023 is a deficient number, since it is larger than the sum of its proper divisors (1).

131513501023 is an equidigital number, since it uses as much as digits as its factorization.

131513501023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 131513501023 its reverse (320105315131), we get a palindrome (451618816154).

The spelling of 131513501023 in words is "one hundred thirty-one billion, five hundred thirteen million, five hundred one thousand, twenty-three".