120210312031021 has 32 divisors (see below), whose sum is σ = 122499234506880. Its totient is φ = 117948638739456.

The previous prime is 120210312030947. The next prime is 120210312031081. The reversal of 120210312031021 is 120130213012021.

It is a cyclic number.

It is not a de Polignac number, because 120210312031021 - 2¹⁷ = 120210311899949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120210312031021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210312031081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13053563865 + ... + 13053573073.

It is an arithmetic number, because the mean of its divisors is an integer number (3828101078340).

Almost surely, 2^{120210312031021} is an apocalyptic number.

It is an amenable number.

120210312031021 is a deficient number, since it is larger than the sum of its proper divisors (2288922475859).

120210312031021 is a wasteful number, since it uses less digits than its factorization.

120210312031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12093.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 120210312031021 its reverse (120130213012021), we get a palindrome (240340525043042).

The spelling of 120210312031021 in words is "one hundred twenty trillion, two hundred ten billion, three hundred twelve million, thirty-one thousand, twenty-one".