131132302031 has 4 divisors (see below), whose sum is σ = 132357837672. Its totient is φ = 129906766392.

The previous prime is 131132301901. The next prime is 131132302061. The reversal of 131132302031 is 130203231131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131132302031 is a prime.

It is a super-2 number, since 2×131132302031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131132301994 and 131132302012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131132302061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612767660 + ... + 612767873.

It is an arithmetic number, because the mean of its divisors is an integer number (33089459418).

Almost surely, 2^131132302031 is an apocalyptic number.

131132302031 is a deficient number, since it is larger than the sum of its proper divisors (1225535641).

131132302031 is a wasteful number, since it uses less digits than its factorization.

131132302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225535640.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131132302031 its reverse (130203231131), we get a palindrome (261335533162).

The spelling of 131132302031 in words is "one hundred thirty-one billion, one hundred thirty-two million, three hundred two thousand, thirty-one".