21023132331311 has 8 divisors (see below), whose sum is σ = 22936635666048. Its totient is φ = 19110013911000.

The previous prime is 21023132331197. The next prime is 21023132331343. The reversal of 21023132331311 is 11313323132012.

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

It is a cyclic number.

It is not a de Polignac number, because 21023132331311 - 2²² = 21023128137007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21023132331371) 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, 96114395 + ... + 96332876.

It is an arithmetic number, because the mean of its divisors is an integer number (2867079458256).

Almost surely, 2^{21023132331311} is an apocalyptic number.

21023132331311 is a deficient number, since it is larger than the sum of its proper divisors (1913503334737).

21023132331311 is a wasteful number, since it uses less digits than its factorization.

21023132331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192457213.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 21023132331311 its reverse (11313323132012), we get a palindrome (32336455463323).

The spelling of 21023132331311 in words is "twenty-one trillion, twenty-three billion, one hundred thirty-two million, three hundred thirty-one thousand, three hundred eleven".