120320111111231 has 4 divisors (see below), whose sum is σ = 120320153169192. Its totient is φ = 120320069053272.

The previous prime is 120320111111191. The next prime is 120320111111269. The reversal of 120320111111231 is 132111111023021.

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-120320111111231 is a prime.

It is a super-2 number, since 2×120320111111231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120320111111131) 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, 16397780 + ... + 22572713.

It is an arithmetic number, because the mean of its divisors is an integer number (30080038292298).

Almost surely, 2^{120320111111231} is an apocalyptic number.

120320111111231 is a deficient number, since it is larger than the sum of its proper divisors (42057961).

120320111111231 is an equidigital number, since it uses as much as digits as its factorization.

120320111111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42057960.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 120320111111231 its reverse (132111111023021), we get a palindrome (252431222134252).

The spelling of 120320111111231 in words is "one hundred twenty trillion, three hundred twenty billion, one hundred eleven million, one hundred eleven thousand, two hundred thirty-one".