131212011413021 has 64 divisors (see below), whose sum is σ = 166089639144960. Its totient is φ = 100684731248640.

The previous prime is 131212011413011. The next prime is 131212011413069. The reversal of 131212011413021 is 120314110212131.

It is not a de Polignac number, because 131212011413021 - 2³⁴ = 131194831543837 is a prime.

It is a super-2 number, since 2×131212011413021² (a number of 29 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 (131212011413011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12797421131 + ... + 12797431383.

It is an arithmetic number, because the mean of its divisors is an integer number (2595150611640).

Almost surely, 2^{131212011413021} is an apocalyptic number.

131212011413021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131212011413021 is a deficient number, since it is larger than the sum of its proper divisors (34877627731939).

131212011413021 is a wasteful number, since it uses less digits than its factorization.

131212011413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13686.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 131212011413021 its reverse (120314110212131), we get a palindrome (251526121625152).

The spelling of 131212011413021 in words is "one hundred thirty-one trillion, two hundred twelve billion, eleven million, four hundred thirteen thousand, twenty-one".