631321086121 has 8 divisors (see below), whose sum is σ = 688730234688. Its totient is φ = 573914658000.

The previous prime is 631321086107. The next prime is 631321086127. The reversal of 631321086121 is 121680123136.

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 631321086121 - 2¹³ = 631321077929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631321086127) 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, 178810 + ... + 1137811.

It is an arithmetic number, because the mean of its divisors is an integer number (86091279336).

Almost surely, 2^631321086121 is an apocalyptic number.

It is an amenable number.

631321086121 is a deficient number, since it is larger than the sum of its proper divisors (57409148567).

631321086121 is a wasteful number, since it uses less digits than its factorization.

631321086121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360223.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 631321086121 in words is "six hundred thirty-one billion, three hundred twenty-one million, eighty-six thousand, one hundred twenty-one".