21233200231331 has 32 divisors (see below), whose sum is σ = 23786804321280. Its totient is φ = 18786802003200.

The previous prime is 21233200231291. The next prime is 21233200231337. The reversal of 21233200231331 is 13313200233212.

It is not a de Polignac number, because 21233200231331 - 2⁶ = 21233200231267 is a prime.

It is a super-2 number, since 2×21233200231331² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21233200231331.

It is not an unprimeable number, because it can be changed into a prime (21233200231337) 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, 156712391 + ... + 156847823.

It is an arithmetic number, because the mean of its divisors is an integer number (743337635040).

Almost surely, 2^{21233200231331} is an apocalyptic number.

21233200231331 is a deficient number, since it is larger than the sum of its proper divisors (2553604089949).

21233200231331 is a wasteful number, since it uses less digits than its factorization.

21233200231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136667.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21233200231331 its reverse (13313200233212), we get a palindrome (34546400464543).

The spelling of 21233200231331 in words is "twenty-one trillion, two hundred thirty-three billion, two hundred million, two hundred thirty-one thousand, three hundred thirty-one".