331400230130021 has 32 divisors (see below), whose sum is σ = 385893988085760. Its totient is φ = 282184977057984.

The previous prime is 331400230129987. The next prime is 331400230130063. The reversal of 331400230130021 is 120031032004133.

It is not a de Polignac number, because 331400230130021 - 2³⁸ = 331125352223077 is a prime.

It is a super-2 number, since 2×331400230130021² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331400230120021) 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, 162122651 + ... + 164154056.

It is an arithmetic number, because the mean of its divisors is an integer number (12059187127680).

Almost surely, 2^{331400230130021} is an apocalyptic number.

It is an amenable number.

331400230130021 is a deficient number, since it is larger than the sum of its proper divisors (54493757955739).

331400230130021 is a wasteful number, since it uses less digits than its factorization.

331400230130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326276865.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 331400230130021 its reverse (120031032004133), we get a palindrome (451431262134154).

The spelling of 331400230130021 in words is "three hundred thirty-one trillion, four hundred billion, two hundred thirty million, one hundred thirty thousand, twenty-one".