21151036204 has 12 divisors (see below), whose sum is σ = 38290669200. Its totient is φ = 10210845008.

The previous prime is 21151036177. The next prime is 21151036237. The reversal of 21151036204 is 40263015112.

It is a happy number.

It is a super-3 number, since 3×21151036204³ (a number of 32 digits) contains 333 as substring.

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, 91168144 + ... + 91168375.

It is an arithmetic number, because the mean of its divisors is an integer number (3190889100).

Almost surely, 2^21151036204 is an apocalyptic number.

It is an amenable number.

21151036204 is a deficient number, since it is larger than the sum of its proper divisors (17139632996).

21151036204 is a wasteful number, since it uses less digits than its factorization.

21151036204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182336552 (or 182336550 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 21151036204 in words is "twenty-one billion, one hundred fifty-one million, thirty-six thousand, two hundred four".