122631453720 has 48 divisors (see below), whose sum is σ = 398552225760. Its totient is φ = 32701720896.

The previous prime is 122631453701. The next prime is 122631453787. The reversal of 122631453720 is 27354136221.

122631453720 is a `hidden beast` number, since 1 + 226 + 314 + 53 + 72 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170321104 + ... + 170321823.

It is an arithmetic number, because the mean of its divisors is an integer number (8303171370).

Almost surely, 2^122631453720 is an apocalyptic number.

122631453720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122631453720 is an abundant number, since it is smaller than the sum of its proper divisors (275920772040).

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

122631453720 is a wasteful number, since it uses less digits than its factorization.

122631453720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340642944 (or 340642937 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 122631453720 its reverse (27354136221), we get a palindrome (149985589941).

The spelling of 122631453720 in words is "one hundred twenty-two billion, six hundred thirty-one million, four hundred fifty-three thousand, seven hundred twenty".