131212021132 has 24 divisors (see below), whose sum is σ = 239958595296. Its totient is φ = 62660851968.

The previous prime is 131212021091. The next prime is 131212021141. The reversal of 131212021132 is 231120212131.

It is a super-2 number, since 2×131212021132² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991053 + ... + 1115620.

It is an arithmetic number, because the mean of its divisors is an integer number (9998274804).

Almost surely, 2^131212021132 is an apocalyptic number.

It is an amenable number.

131212021132 is a deficient number, since it is larger than the sum of its proper divisors (108746574164).

131212021132 is a wasteful number, since it uses less digits than its factorization.

131212021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107377 (or 2107375 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131212021132 its reverse (231120212131), we get a palindrome (362332233263).

The spelling of 131212021132 in words is "one hundred thirty-one billion, two hundred twelve million, twenty-one thousand, one hundred thirty-two".