40123043032 has 64 divisors (see below), whose sum is σ = 80172180000. Its totient is φ = 18791614464.

The previous prime is 40123043027. The next prime is 40123043039. The reversal of 40123043032 is 23034032104.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40123042994 and 40123043012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40123043039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1472928 + ... + 1499920.

Almost surely, 2^40123043032 is an apocalyptic number.

It is an amenable number.

40123043032 is a deficient number, since it is larger than the sum of its proper divisors (40049136968).

40123043032 is a wasteful number, since it uses less digits than its factorization.

40123043032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27220 (or 27216 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 40123043032 its reverse (23034032104), we get a palindrome (63157075136).

The spelling of 40123043032 in words is "forty billion, one hundred twenty-three million, forty-three thousand, thirty-two".