12531510190081 has 8 divisors (see below), whose sum is σ = 13191456283200. Its totient is φ = 11871603389520.

The previous prime is 12531510190057. The next prime is 12531510190109. The reversal of 12531510190081 is 18009101513521.

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 12531510190081 - 2⁵ = 12531510190049 is a prime.

It is a super-2 number, since 2×12531510190081² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12531510190081.

It is not an unprimeable number, because it can be changed into a prime (12531510190021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9167365 + ... + 10445266.

It is an arithmetic number, because the mean of its divisors is an integer number (1648932035400).

Almost surely, 2^{12531510190081} is an apocalyptic number.

It is an amenable number.

12531510190081 is a deficient number, since it is larger than the sum of its proper divisors (659946093119).

12531510190081 is a wasteful number, since it uses less digits than its factorization.

12531510190081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19646279.

The product of its (nonzero) digits is 10800, while the sum is 37.

The spelling of 12531510190081 in words is "twelve trillion, five hundred thirty-one billion, five hundred ten million, one hundred ninety thousand, eighty-one".