120431233021 has 4 divisors (see below), whose sum is σ = 131379526944. Its totient is φ = 109482939100.

The previous prime is 120431233003. The next prime is 120431233037. The reversal of 120431233021 is 120332134021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120431233021 - 2¹³ = 120431224829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120431232983 and 120431233001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120431233051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5474146945 + ... + 5474146966.

It is an arithmetic number, because the mean of its divisors is an integer number (32844881736).

Almost surely, 2^120431233021 is an apocalyptic number.

120431233021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120431233021 is a deficient number, since it is larger than the sum of its proper divisors (10948293923).

120431233021 is a wasteful number, since it uses less digits than its factorization.

120431233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10948293922.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 120431233021 its reverse (120332134021), we get a palindrome (240763367042).

The spelling of 120431233021 in words is "one hundred twenty billion, four hundred thirty-one million, two hundred thirty-three thousand, twenty-one".