120631606232557 has 32 divisors (see below), whose sum is σ = 142337981376000. Its totient is φ = 100073302357248.

The previous prime is 120631606232551. The next prime is 120631606232581. The reversal of 120631606232557 is 755232606136021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120631606232557 - 2¹⁹ = 120631605708269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120631606232557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120631606232551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206542419 + ... + 207125647.

It is an arithmetic number, because the mean of its divisors is an integer number (4448061918000).

Almost surely, 2^{120631606232557} is an apocalyptic number.

It is an amenable number.

120631606232557 is a deficient number, since it is larger than the sum of its proper divisors (21706375143443).

120631606232557 is a wasteful number, since it uses less digits than its factorization.

120631606232557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587485.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 120631606232557 in words is "one hundred twenty trillion, six hundred thirty-one billion, six hundred six million, two hundred thirty-two thousand, five hundred fifty-seven".