40023231020 has 12 divisors (see below), whose sum is σ = 84048785184. Its totient is φ = 16009292400.

The previous prime is 40023230999. The next prime is 40023231037. The reversal of 40023231020 is 2013232004.

It is a self number, because there is not a number n which added to its sum of digits gives 40023231020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000580756 + ... + 1000580795.

It is an arithmetic number, because the mean of its divisors is an integer number (7004065432).

Almost surely, 2^40023231020 is an apocalyptic number.

It is an amenable number.

40023231020 is an abundant number, since it is smaller than the sum of its proper divisors (44025554164).

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

40023231020 is a wasteful number, since it uses less digits than its factorization.

40023231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001161560 (or 2001161558 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 40023231020 its reverse (2013232004), we get a palindrome (42036463024).

The spelling of 40023231020 in words is "forty billion, twenty-three million, two hundred thirty-one thousand, twenty".