131043630621420 has 72 divisors (see below), whose sum is σ = 433635286790160. Its totient is φ = 31768152877440.

The previous prime is 131043630621401. The next prime is 131043630621439. The reversal of 131043630621420 is 24126036340131.

131043630621420 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 4 + 3 + 6 + 3 + 0 + 621 + 4 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (131043630621401) and next prime (131043630621439).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33091823935 + ... + 33091827894.

It is an arithmetic number, because the mean of its divisors is an integer number (6022712316530).

Almost surely, 2^{131043630621420} is an apocalyptic number.

131043630621420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131043630621420 is an abundant number, since it is smaller than the sum of its proper divisors (302591656168740).

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

131043630621420 is a wasteful number, since it uses less digits than its factorization.

131043630621420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66183651855 (or 66183651850 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 131043630621420 its reverse (24126036340131), we get a palindrome (155169666961551).

The spelling of 131043630621420 in words is "one hundred thirty-one trillion, forty-three billion, six hundred thirty million, six hundred twenty-one thousand, four hundred twenty".