40123203252 has 48 divisors (see below), whose sum is σ = 102203543232. Its totient is φ = 12150004480.

The previous prime is 40123203217. The next prime is 40123203349. The reversal of 40123203252 is 25230232104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83098 + ... + 295214.

It is an arithmetic number, because the mean of its divisors is an integer number (2129240484).

Almost surely, 2^40123203252 is an apocalyptic number.

It is an amenable number.

40123203252 is an abundant number, since it is smaller than the sum of its proper divisors (62080339980).

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

40123203252 is a wasteful number, since it uses less digits than its factorization.

40123203252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213568 (or 213566 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 40123203252 its reverse (25230232104), we get a palindrome (65353435356).

The spelling of 40123203252 in words is "forty billion, one hundred twenty-three million, two hundred three thousand, two hundred fifty-two".