131103302031 has 32 divisors (see below), whose sum is σ = 221471651520. Its totient is φ = 75933130752.

The previous prime is 131103302021. The next prime is 131103302039. The reversal of 131103302031 is 130203301131.

It is a happy number.

131103302031 is a `hidden beast` number, since 1 + 311 + 0 + 330 + 20 + 3 + 1 = 666.

It is not a de Polignac number, because 131103302031 - 2⁹ = 131103301519 is a prime.

It is a super-2 number, since 2×131103302031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131103301995 and 131103302013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103302039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10979730 + ... + 10991663.

It is an arithmetic number, because the mean of its divisors is an integer number (6920989110).

Almost surely, 2^131103302031 is an apocalyptic number.

131103302031 is a deficient number, since it is larger than the sum of its proper divisors (90368349489).

131103302031 is a wasteful number, since it uses less digits than its factorization.

131103302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21971432 (or 21971426 counting only the distinct ones).

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

Adding to 131103302031 its reverse (130203301131), we get a palindrome (261306603162).

The spelling of 131103302031 in words is "one hundred thirty-one billion, one hundred three million, three hundred two thousand, thirty-one".