40123033220 has 24 divisors (see below), whose sum is σ = 84343435008. Its totient is φ = 16033010400.

The previous prime is 40123033207. The next prime is 40123033231. The reversal of 40123033220 is 2233032104.

It is a super-3 number, since 3×40123033220³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40123033192 and 40123033201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992366 + ... + 1032005.

It is an arithmetic number, because the mean of its divisors is an integer number (3514309792).

Almost surely, 2^40123033220 is an apocalyptic number.

It is an amenable number.

40123033220 is an abundant number, since it is smaller than the sum of its proper divisors (44220401788).

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

40123033220 is a wasteful number, since it uses less digits than its factorization.

40123033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025371 (or 2025369 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 40123033220 its reverse (2233032104), we get a palindrome (42356065324).

The spelling of 40123033220 in words is "forty billion, one hundred twenty-three million, thirty-three thousand, two hundred twenty".