120323312311 has 4 divisors (see below), whose sum is σ = 122119182712. Its totient is φ = 118527441912.

The previous prime is 120323312287. The next prime is 120323312323. The reversal of 120323312311 is 113213323021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113213323021 = 1999 ⋅56634979.

It is a cyclic number.

It is not a de Polignac number, because 120323312311 - 2⁷ = 120323312183 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 (120323322311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897935100 + ... + 897935233.

It is an arithmetic number, because the mean of its divisors is an integer number (30529795678).

Almost surely, 2^120323312311 is an apocalyptic number.

120323312311 is a deficient number, since it is larger than the sum of its proper divisors (1795870401).

120323312311 is an equidigital number, since it uses as much as digits as its factorization.

120323312311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795870400.

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

Adding to 120323312311 its reverse (113213323021), we get a palindrome (233536635332).

The spelling of 120323312311 in words is "one hundred twenty billion, three hundred twenty-three million, three hundred twelve thousand, three hundred eleven".