131212012132120 has 32 divisors (see below), whose sum is σ = 295414950435120. Its totient is φ = 52451396295040.

The previous prime is 131212012132109. The next prime is 131212012132147. The reversal of 131212012132120 is 21231210212131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131212012132091 and 131212012132100.

It is a congruent number.

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, 1043953807 + ... + 1044079486.

Almost surely, 2^{131212012132120} is an apocalyptic number.

131212012132120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131212012132120 is an abundant number, since it is smaller than the sum of its proper divisors (164202938303000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131212012132120 is a wasteful number, since it uses less digits than its factorization.

131212012132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088034875 (or 2088034871 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131212012132120 its reverse (21231210212131), we get a palindrome (152443222344251).

The spelling of 131212012132120 in words is "one hundred thirty-one trillion, two hundred twelve billion, twelve million, one hundred thirty-two thousand, one hundred twenty".