40023110521 has 8 divisors (see below), whose sum is σ = 41279370624. Its totient is φ = 38783713200.

The previous prime is 40023110411. The next prime is 40023110527. The reversal of 40023110521 is 12501132004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40023110521 - 2³⁵ = 5663372153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40023110527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4210875 + ... + 4220368.

It is an arithmetic number, because the mean of its divisors is an integer number (5159921328).

Almost surely, 2^40023110521 is an apocalyptic number.

It is an amenable number.

40023110521 is a deficient number, since it is larger than the sum of its proper divisors (1256260103).

40023110521 is a wasteful number, since it uses less digits than its factorization.

40023110521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431391.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 40023110521 its reverse (12501132004), we get a palindrome (52524242525).

It can be divided in two parts, 40023 and 110521, that added together give a square (150544 = 388²).

The spelling of 40023110521 in words is "forty billion, twenty-three million, one hundred ten thousand, five hundred twenty-one".