120331232311 has 4 divisors (see below), whose sum is σ = 127409540112. Its totient is φ = 113252924512.

The previous prime is 120331232309. The next prime is 120331232317. The reversal of 120331232311 is 113232133021.

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

It is not a de Polignac number, because 120331232311 - 2¹ = 120331232309 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 (120331232317) 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, 3539153875 + ... + 3539153908.

It is an arithmetic number, because the mean of its divisors is an integer number (31852385028).

Almost surely, 2^120331232311 is an apocalyptic number.

120331232311 is a deficient number, since it is larger than the sum of its proper divisors (7078307801).

120331232311 is an equidigital number, since it uses as much as digits as its factorization.

120331232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078307800.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 120331232311 its reverse (113232133021), we get a palindrome (233563365332).

The spelling of 120331232311 in words is "one hundred twenty billion, three hundred thirty-one million, two hundred thirty-two thousand, three hundred eleven".