21376117061231 has 8 divisors (see below), whose sum is σ = 21578502368640. Its totient is φ = 21174426043992.

The previous prime is 21376117061227. The next prime is 21376117061293. The reversal of 21376117061231 is 13216071167312.

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 21376117061231 - 2² = 21376117061227 is a prime.

It is a super-2 number, since 2×21376117061231² (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 (21370117061231) 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, 173510675 + ... + 173633828.

It is an arithmetic number, because the mean of its divisors is an integer number (2697312796080).

Almost surely, 2^{21376117061231} is an apocalyptic number.

21376117061231 is a deficient number, since it is larger than the sum of its proper divisors (202385307409).

21376117061231 is a wasteful number, since it uses less digits than its factorization.

21376117061231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347145085.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 21376117061231 in words is "twenty-one trillion, three hundred seventy-six billion, one hundred seventeen million, sixty-one thousand, two hundred thirty-one".