11230721072 has 20 divisors (see below), whose sum is σ = 21789230400. Its totient is φ = 5607693888.

The previous prime is 11230721059. The next prime is 11230721087. The reversal of 11230721072 is 27012703211.

It is a super-2 number, since 2×11230721072² (a number of 21 digits) contains 22 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, 467072 + ... + 490527.

It is an arithmetic number, because the mean of its divisors is an integer number (1089461520).

Almost surely, 2^11230721072 is an apocalyptic number.

It is an amenable number.

11230721072 is a deficient number, since it is larger than the sum of its proper divisors (10558509328).

11230721072 is an equidigital number, since it uses as much as digits as its factorization.

11230721072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958340 (or 958334 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The spelling of 11230721072 in words is "eleven billion, two hundred thirty million, seven hundred twenty-one thousand, seventy-two".