231621366059987 has 8 divisors (see below), whose sum is σ = 240294495513600. Its totient is φ = 223023328636680.

The previous prime is 231621366059947. The next prime is 231621366060067. The reversal of 231621366059987 is 789950663126132.

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 231621366059987 - 2¹⁰ = 231621366058963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231621366059917) 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, 18773001293 + ... + 18773013630.

It is an arithmetic number, because the mean of its divisors is an integer number (30036811939200).

Almost surely, 2^{231621366059987} is an apocalyptic number.

231621366059987 is a deficient number, since it is larger than the sum of its proper divisors (8673129453613).

231621366059987 is a wasteful number, since it uses less digits than its factorization.

231621366059987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37546015153.

The product of its (nonzero) digits is 176359680, while the sum is 68.

The spelling of 231621366059987 in words is "two hundred thirty-one trillion, six hundred twenty-one billion, three hundred sixty-six million, fifty-nine thousand, nine hundred eighty-seven".