120431903089 has 3 divisors (see below), whose sum is σ = 120432250123. Its totient is φ = 120431556056.

The previous prime is 120431903087. The next prime is 120431903093. The reversal of 120431903089 is 980309134021.

The square root of 120431903089 is 347033.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 47967570225 + 72464332864 = 219015^2 + 269192^2 .

It is not a de Polignac number, because 120431903089 - 2¹ = 120431903087 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120431903083) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 173517 + ... + 520549.

Almost surely, 2^120431903089 is an apocalyptic number.

120431903089 is the 347033-rd square number.

120431903089 is the 173517-th centered octagonal number.

It is an amenable number.

120431903089 is a deficient number, since it is larger than the sum of its proper divisors (347034).

120431903089 is an frugal number, since it uses more digits than its factorization.

120431903089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694066 (or 347033 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 120431903089 in words is "one hundred twenty billion, four hundred thirty-one million, nine hundred three thousand, eighty-nine".