21056101332 has 96 divisors (see below), whose sum is σ = 60717662208. Its totient is φ = 5541656064.

The previous prime is 21056101331. The next prime is 21056101333. The reversal of 21056101332 is 23310165012.

It is an interprime number because it is at equal distance from previous prime (21056101331) and next prime (21056101333).

21056101332 is a modest number, since divided by 101332 gives 21056 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21056101331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89748 + ... + 223979.

It is an arithmetic number, because the mean of its divisors is an integer number (632475648).

Almost surely, 2^21056101332 is an apocalyptic number.

It is an amenable number.

21056101332 is an abundant number, since it is smaller than the sum of its proper divisors (39661560876).

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

21056101332 is a wasteful number, since it uses less digits than its factorization.

21056101332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313805 (or 313803 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 21056101332 its reverse (23310165012), we get a palindrome (44366266344).

The spelling of 21056101332 in words is "twenty-one billion, fifty-six million, one hundred one thousand, three hundred thirty-two".