21113051048 has 16 divisors (see below), whose sum is σ = 39617371680. Its totient is φ = 10548418608.

The previous prime is 21113050999. The next prime is 21113051059. The reversal of 21113051048 is 84015031112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002290 + ... + 1023137.

It is an arithmetic number, because the mean of its divisors is an integer number (2476085730).

Almost surely, 2^21113051048 is an apocalyptic number.

It is an amenable number.

21113051048 is a deficient number, since it is larger than the sum of its proper divisors (18504320632).

21113051048 is a wasteful number, since it uses less digits than its factorization.

21113051048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026736 (or 2026732 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The spelling of 21113051048 in words is "twenty-one billion, one hundred thirteen million, fifty-one thousand, forty-eight".