11723111672 has 128 divisors (see below), whose sum is σ = 23944377600. Its totient is φ = 5371204608.

The previous prime is 11723111627. The next prime is 11723111717. The reversal of 11723111672 is 27611132711.

It is an interprime number because it is at equal distance from previous prime (11723111627) and next prime (11723111717).

It is a super-3 number, since 3×11723111672³ (a number of 31 digits) contains 333 as substring.

Its product of digits (3528) is a multiple of the sum of its prime divisors (441).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50313668 + ... + 50313900.

It is an arithmetic number, because the mean of its divisors is an integer number (187065450).

Almost surely, 2^11723111672 is an apocalyptic number.

It is an amenable number.

11723111672 is an abundant number, since it is smaller than the sum of its proper divisors (12221265928).

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

11723111672 is a wasteful number, since it uses less digits than its factorization.

11723111672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 441 counting only the distinct ones).

The product of its digits is 3528, while the sum is 32.

The spelling of 11723111672 in words is "eleven billion, seven hundred twenty-three million, one hundred eleven thousand, six hundred seventy-two".