21310023233028 has 96 divisors (see below), whose sum is σ = 50498995599360. Its totient is φ = 6993090449280.

The previous prime is 21310023232999. The next prime is 21310023233029. The reversal of 21310023233028 is 82033232001312.

It is a junction number, because it is equal to n+sod(n) for n = 21310023232986 and 21310023233004.

It is not an unprimeable number, because it can be changed into a prime (21310023233029) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 484065658 + ... + 484109678.

It is an arithmetic number, because the mean of its divisors is an integer number (526031204160).

Almost surely, 2^{21310023233028} is an apocalyptic number.

It is an amenable number.

21310023233028 is an abundant number, since it is smaller than the sum of its proper divisors (29188972366332).

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

21310023233028 is a wasteful number, since it uses less digits than its factorization.

21310023233028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45577 (or 45575 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 21310023233028 in words is "twenty-one trillion, three hundred ten billion, twenty-three million, two hundred thirty-three thousand, twenty-eight".