23123144040 has 32 divisors (see below), whose sum is σ = 69369432480. Its totient is φ = 6166171712.

The previous prime is 23123144029. The next prime is 23123144053. The reversal of 23123144040 is 4044132132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23123144040.

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, 96346314 + ... + 96346553.

It is an arithmetic number, because the mean of its divisors is an integer number (2167794765).

Almost surely, 2^23123144040 is an apocalyptic number.

23123144040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23123144040 is an abundant number, since it is smaller than the sum of its proper divisors (46246288440).

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

23123144040 is a wasteful number, since it uses less digits than its factorization.

23123144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192692881 (or 192692877 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23123144040 its reverse (4044132132), we get a palindrome (27167276172).

The spelling of 23123144040 in words is "twenty-three billion, one hundred twenty-three million, one hundred forty-four thousand, forty".