131504430133531 has 8 divisors (see below), whose sum is σ = 161851606318304. Its totient is φ = 104047461204480.

The previous prime is 131504430133511. The next prime is 131504430133537. The reversal of 131504430133531 is 135331034405131.

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

It is a cyclic number.

It is not a de Polignac number, because 131504430133531 - 2³⁹ = 130954674319643 is a prime.

It is a super-2 number, since 2×131504430133531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131504430133537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722551813830 + ... + 722551814011.

It is an arithmetic number, because the mean of its divisors is an integer number (20231450789788).

Almost surely, 2^{131504430133531} is an apocalyptic number.

131504430133531 is a deficient number, since it is larger than the sum of its proper divisors (30347176184773).

131504430133531 is a wasteful number, since it uses less digits than its factorization.

131504430133531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445103627861.

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 131504430133531 its reverse (135331034405131), we get a palindrome (266835464538662).

The spelling of 131504430133531 in words is "one hundred thirty-one trillion, five hundred four billion, four hundred thirty million, one hundred thirty-three thousand, five hundred thirty-one".