11923032140 has 24 divisors (see below), whose sum is σ = 25846058112. Its totient is φ = 4615367040.

The previous prime is 11923032139. The next prime is 11923032179. The reversal of 11923032140 is 4123032911.

It is a super-2 number, since 2×11923032140² (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 7 ways as a sum of consecutive naturals, for example, 9614729 + ... + 9615968.

It is an arithmetic number, because the mean of its divisors is an integer number (1076919088).

Almost surely, 2^11923032140 is an apocalyptic number.

11923032140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11923032140 is an abundant number, since it is smaller than the sum of its proper divisors (13923025972).

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

11923032140 is a wasteful number, since it uses less digits than its factorization.

11923032140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19230737 (or 19230735 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 11923032140 in words is "eleven billion, nine hundred twenty-three million, thirty-two thousand, one hundred forty".