120310310005021 has 2 divisors, whose sum is σ = 120310310005022. Its totient is φ = 120310310005020.

The previous prime is 120310310004961. The next prime is 120310310005097. The reversal of 120310310005021 is 120500013013021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106277831464996 + 14032478540025 = 10309114^2 + 3745995^2 .

It is a cyclic number.

It is not a de Polignac number, because 120310310005021 - 2²⁵ = 120310276450589 is a prime.

It is a super-2 number, since 2×120310310005021² (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 120310310005021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120310310005421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60155155002510 + 60155155002511.

It is an arithmetic number, because the mean of its divisors is an integer number (60155155002511).

Almost surely, 2^{120310310005021} is an apocalyptic number.

It is an amenable number.

120310310005021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120310310005021 is an equidigital number, since it uses as much as digits as its factorization.

120310310005021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 120310310005021 its reverse (120500013013021), we get a palindrome (240810323018042).

The spelling of 120310310005021 in words is "one hundred twenty trillion, three hundred ten billion, three hundred ten million, five thousand, twenty-one".