20100215232331 has 8 divisors (see below), whose sum is σ = 21646479917664. Its totient is φ = 18553964016000.

The previous prime is 20100215232329. The next prime is 20100215232389. The reversal of 20100215232331 is 13323251200102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20100215232331 - 2¹ = 20100215232329 is a prime.

It is a super-2 number, since 2×20100215232331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100215232296 and 20100215232305.

It is not an unprimeable number, because it can be changed into a prime (20100215233331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154231 + ... + 6342256.

It is an arithmetic number, because the mean of its divisors is an integer number (2705809989708).

Almost surely, 2^{20100215232331} is an apocalyptic number.

20100215232331 is a deficient number, since it is larger than the sum of its proper divisors (1546264685333).

20100215232331 is a wasteful number, since it uses less digits than its factorization.

20100215232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734501.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 20100215232331 its reverse (13323251200102), we get a palindrome (33423466432433).

The spelling of 20100215232331 in words is "twenty trillion, one hundred billion, two hundred fifteen million, two hundred thirty-two thousand, three hundred thirty-one".