40023203131 has 4 divisors (see below), whose sum is σ = 40025609752. Its totient is φ = 40020796512.

The previous prime is 40023203057. The next prime is 40023203191. The reversal of 40023203131 is 13130232004.

40023203131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40023203131 - 2¹¹ = 40023201083 is a prime.

It is a super-2 number, since 2×40023203131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40023203099 and 40023203108.

It is not an unprimeable number, because it can be changed into a prime (40023203191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178190 + ... + 1211683.

It is an arithmetic number, because the mean of its divisors is an integer number (10006402438).

Almost surely, 2^40023203131 is an apocalyptic number.

40023203131 is a deficient number, since it is larger than the sum of its proper divisors (2406621).

40023203131 is a wasteful number, since it uses less digits than its factorization.

40023203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406620.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 40023203131 its reverse (13130232004), we get a palindrome (53153435135).

The spelling of 40023203131 in words is "forty billion, twenty-three million, two hundred three thousand, one hundred thirty-one".