120289499631 has 24 divisors (see below), whose sum is σ = 205927705984. Its totient is φ = 68736855960.

The previous prime is 120289499611. The next prime is 120289499639. The reversal of 120289499631 is 136994982021.

120289499631 is a `hidden beast` number, since 12 + 0 + 2 + 89 + 499 + 63 + 1 = 666.

It is not a de Polignac number, because 120289499631 - 2⁵ = 120289499599 is a prime.

It is a super-2 number, since 2×120289499631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120289499639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35356765 + ... + 35360166.

Almost surely, 2^120289499631 is an apocalyptic number.

120289499631 is a deficient number, since it is larger than the sum of its proper divisors (85638206353).

120289499631 is an frugal number, since it uses more digits than its factorization.

120289499631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70716953 (or 70716941 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 120289499631 in words is "one hundred twenty billion, two hundred eighty-nine million, four hundred ninety-nine thousand, six hundred thirty-one".