21360120333031 has 8 divisors (see below), whose sum is σ = 21582408883104. Its totient is φ = 21138043591200.

The previous prime is 21360120333023. The next prime is 21360120333047. The reversal of 21360120333031 is 13033302106312.

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 21360120333031 - 2³ = 21360120333023 is a prime.

It is a super-2 number, since 2×21360120333031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21360120333631) 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, 52749315 + ... + 53152708.

It is an arithmetic number, because the mean of its divisors is an integer number (2697801110388).

Almost surely, 2^{21360120333031} is an apocalyptic number.

21360120333031 is a deficient number, since it is larger than the sum of its proper divisors (222288550073).

21360120333031 is a wasteful number, since it uses less digits than its factorization.

21360120333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105904121.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 21360120333031 its reverse (13033302106312), we get a palindrome (34393422439343).

The spelling of 21360120333031 in words is "twenty-one trillion, three hundred sixty billion, one hundred twenty million, three hundred thirty-three thousand, thirty-one".