120232131309 has 24 divisors (see below), whose sum is σ = 182837351840. Its totient is φ = 75924343008.

The previous prime is 120232131307. The next prime is 120232131361. The reversal of 120232131309 is 903131232021.

120232131309 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 321 + 31 + 309 = 666.

It is not a de Polignac number, because 120232131309 - 2¹ = 120232131307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120232131301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1130199 + ... + 1231995.

Almost surely, 2^120232131309 is an apocalyptic number.

120232131309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

120232131309 is a deficient number, since it is larger than the sum of its proper divisors (62605220531).

120232131309 is a wasteful number, since it uses less digits than its factorization.

120232131309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108729 (or 108726 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 120232131309 in words is "one hundred twenty billion, two hundred thirty-two million, one hundred thirty-one thousand, three hundred nine".