21113003154312 has 48 divisors (see below), whose sum is σ = 59152810567500. Its totient is φ = 6794989520256.

The previous prime is 21113003154241. The next prime is 21113003154317. The reversal of 21113003154312 is 21345130031112.

21113003154312 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 30 + 0 + 315 + 4 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20363071402116 + 749931752196 = 4512546^2 + 865986^2 .

It is not an unprimeable number, because it can be changed into a prime (21113003154317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5055793687 + ... + 5055797862.

Almost surely, 2^{21113003154312} is an apocalyptic number.

It is an amenable number.

21113003154312 is an abundant number, since it is smaller than the sum of its proper divisors (38039807413188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113003154312 is a wasteful number, since it uses less digits than its factorization.

21113003154312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111591590 (or 10111591583 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 21113003154312 its reverse (21345130031112), we get a palindrome (42458133185424).

The spelling of 21113003154312 in words is "twenty-one trillion, one hundred thirteen billion, three million, one hundred fifty-four thousand, three hundred twelve".