131083501631 has 8 divisors (see below), whose sum is σ = 134199848640. Its totient is φ = 127980793728.

The previous prime is 131083501609. The next prime is 131083501669. The reversal of 131083501631 is 136105380131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131083501631 is a prime.

It is a super-2 number, since 2×131083501631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131083503631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3390326 + ... + 3428771.

It is an arithmetic number, because the mean of its divisors is an integer number (16774981080).

Almost surely, 2^131083501631 is an apocalyptic number.

131083501631 is a deficient number, since it is larger than the sum of its proper divisors (3116347009).

131083501631 is an equidigital number, since it uses as much as digits as its factorization.

131083501631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819553.

The product of its (nonzero) digits is 6480, while the sum is 32.

Adding to 131083501631 its reverse (136105380131), we get a palindrome (267188881762).

The spelling of 131083501631 in words is "one hundred thirty-one billion, eighty-three million, five hundred one thousand, six hundred thirty-one".