120311222123231 has 4 divisors (see below), whose sum is σ = 120313693795512. Its totient is φ = 120308750450952.

The previous prime is 120311222123221. The next prime is 120311222123233. The reversal of 120311222123231 is 132321222113021.

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

It is a cyclic number.

It is not a de Polignac number, because 120311222123231 - 2⁶ = 120311222123167 is a prime.

It is a super-2 number, since 2×120311222123231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120311222123231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120311222123233) 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, 1235763125 + ... + 1235860478.

It is an arithmetic number, because the mean of its divisors is an integer number (30078423448878).

Almost surely, 2^{120311222123231} is an apocalyptic number.

120311222123231 is a deficient number, since it is larger than the sum of its proper divisors (2471672281).

120311222123231 is an equidigital number, since it uses as much as digits as its factorization.

120311222123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471672280.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 120311222123231 its reverse (132321222113021), we get a palindrome (252632444236252).

The spelling of 120311222123231 in words is "one hundred twenty trillion, three hundred eleven billion, two hundred twenty-two million, one hundred twenty-three thousand, two hundred thirty-one".