21132311100331 has 8 divisors (see below), whose sum is σ = 22278438239904. Its totient is φ = 20005128211200.

The previous prime is 21132311100317. The next prime is 21132311100343. The reversal of 21132311100331 is 13300111323112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21132311100331 is a prime.

It is a super-2 number, since 2×21132311100331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21132311100311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4736060320 + ... + 4736064781.

It is an arithmetic number, because the mean of its divisors is an integer number (2784804779988).

Almost surely, 2^{21132311100331} is an apocalyptic number.

21132311100331 is a deficient number, since it is larger than the sum of its proper divisors (1146127139573).

21132311100331 is an equidigital number, since it uses as much as digits as its factorization.

21132311100331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9472125221.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21132311100331 its reverse (13300111323112), we get a palindrome (34432422423443).

The spelling of 21132311100331 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred eleven million, one hundred thousand, three hundred thirty-one".