21113114312 has 24 divisors (see below), whose sum is σ = 40136887890. Its totient is φ = 10411925760.

The previous prime is 21113114311. The next prime is 21113114327. The reversal of 21113114312 is 21341131112.

It can be written as a sum of positive squares in 3 ways, for example, as 15593515876 + 5519598436 = 124874^2 + 74294^2 .

It is not an unprimeable number, because it can be changed into a prime (21113114311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204989 + ... + 290252.

Almost surely, 2^21113114312 is an apocalyptic number.

It is an amenable number.

21113114312 is a deficient number, since it is larger than the sum of its proper divisors (19023773578).

21113114312 is an equidigital number, since it uses as much as digits as its factorization.

21113114312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495393 (or 495316 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 21113114312 its reverse (21341131112), we get a palindrome (42454245424).

The spelling of 21113114312 in words is "twenty-one billion, one hundred thirteen million, one hundred fourteen thousand, three hundred twelve".