21130111050331 has 8 divisors (see below), whose sum is σ = 22449417326784. Its totient is φ = 19819289059200.

The previous prime is 21130111050313. The next prime is 21130111050341. The reversal of 21130111050331 is 13305011103112.

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 21130111050331 - 2⁹ = 21130111049819 is a prime.

It is a super-2 number, since 2×21130111050331² (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 (21130111050341) 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, 2121066195 + ... + 2121076156.

It is an arithmetic number, because the mean of its divisors is an integer number (2806177165848).

Almost surely, 2^{21130111050331} is an apocalyptic number.

21130111050331 is a deficient number, since it is larger than the sum of its proper divisors (1319306276453).

21130111050331 is a wasteful number, since it uses less digits than its factorization.

21130111050331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242142661.

The product of its (nonzero) digits is 270, while the sum is 22.

Adding to 21130111050331 its reverse (13305011103112), we get a palindrome (34435122153443).

The spelling of 21130111050331 in words is "twenty-one trillion, one hundred thirty billion, one hundred eleven million, fifty thousand, three hundred thirty-one".