21310212300372 has 24 divisors (see below), whose sum is σ = 55248698556800. Its totient is φ = 7103404100088.

The previous prime is 21310212300343. The next prime is 21310212300437. The reversal of 21310212300372 is 27300321201312.

21310212300372 is a `hidden beast` number, since 2 + 1 + 310 + 2 + 12 + 300 + 37 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 98658390172 + ... + 98658390387.

Almost surely, 2^{21310212300372} is an apocalyptic number.

It is an amenable number.

21310212300372 is an abundant number, since it is smaller than the sum of its proper divisors (33938486256428).

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

21310212300372 is a wasteful number, since it uses less digits than its factorization.

21310212300372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197316780572 (or 197316780564 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

Adding to 21310212300372 its reverse (27300321201312), we get a palindrome (48610533501684).

The spelling of 21310212300372 in words is "twenty-one trillion, three hundred ten billion, two hundred twelve million, three hundred thousand, three hundred seventy-two".