40013323124 has 12 divisors (see below), whose sum is σ = 70534435524. Its totient is φ = 19860627264.

The previous prime is 40013323117. The next prime is 40013323139. The reversal of 40013323124 is 42132331004.

It can be written as a sum of positive squares in 2 ways, for example, as 9646775524 + 30366547600 = 98218^2 + 174260^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40013323124.

It is a congruent number.

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, 36507959 + ... + 36509054.

It is an arithmetic number, because the mean of its divisors is an integer number (5877869627).

Almost surely, 2^40013323124 is an apocalyptic number.

It is an amenable number.

40013323124 is a deficient number, since it is larger than the sum of its proper divisors (30521112400).

40013323124 is a wasteful number, since it uses less digits than its factorization.

40013323124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73017154 (or 73017152 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 40013323124 its reverse (42132331004), we get a palindrome (82145654128).

The spelling of 40013323124 in words is "forty billion, thirteen million, three hundred twenty-three thousand, one hundred twenty-four".