120431398927 has 4 divisors (see below), whose sum is σ = 137635884496. Its totient is φ = 103226913360.

The previous prime is 120431398849. The next prime is 120431398931. The reversal of 120431398927 is 729893134021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120431398927 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 (120431398957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8602242774 + ... + 8602242787.

It is an arithmetic number, because the mean of its divisors is an integer number (34408971124).

Almost surely, 2^120431398927 is an apocalyptic number.

120431398927 is a deficient number, since it is larger than the sum of its proper divisors (17204485569).

120431398927 is an equidigital number, since it uses as much as digits as its factorization.

120431398927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17204485568.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 120431398927 in words is "one hundred twenty billion, four hundred thirty-one million, three hundred ninety-eight thousand, nine hundred twenty-seven".