120311340021 has 24 divisors (see below), whose sum is σ = 183208334400. Its totient is φ = 75929331456.

The previous prime is 120311339987. The next prime is 120311340047. The reversal of 120311340021 is 120043113021.

120311340021 is a `hidden beast` number, since 12 + 0 + 311 + 340 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 120311340021 - 2⁶ = 120311339957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120311339976 and 120311340003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120311340421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2975871 + ... + 3016028.

It is an arithmetic number, because the mean of its divisors is an integer number (7633680600).

Almost surely, 2^120311340021 is an apocalyptic number.

It is an amenable number.

120311340021 is a deficient number, since it is larger than the sum of its proper divisors (62896994379).

120311340021 is a wasteful number, since it uses less digits than its factorization.

120311340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5992025 (or 5992022 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 120311340021 its reverse (120043113021), we get a palindrome (240354453042).

The spelling of 120311340021 in words is "one hundred twenty billion, three hundred eleven million, three hundred forty thousand, twenty-one".