120012120211931 has 2 divisors, whose sum is σ = 120012120211932. Its totient is φ = 120012120211930.

The previous prime is 120012120211889. The next prime is 120012120212057. The reversal of 120012120211931 is 139112021210021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120012120211931 is a prime.

It is a super-2 number, since 2×120012120211931² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120012120211931.

It is not a weakly prime, because it can be changed into another prime (120012120211831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006060105965 + 60006060105966.

It is an arithmetic number, because the mean of its divisors is an integer number (60006060105966).

Almost surely, 2^{120012120211931} is an apocalyptic number.

120012120211931 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012120211931 is an equidigital number, since it uses as much as digits as its factorization.

120012120211931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

Adding to 120012120211931 its reverse (139112021210021), we get a palindrome (259124141421952).

The spelling of 120012120211931 in words is "one hundred twenty trillion, twelve billion, one hundred twenty million, two hundred eleven thousand, nine hundred thirty-one".