40203233120 has 96 divisors (see below), whose sum is σ = 96420844800. Its totient is φ = 15837857280.

The previous prime is 40203233099. The next prime is 40203233123. The reversal of 40203233120 is 2133230204.

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 = 40203233092 and 40203233101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40203233123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19299599 + ... + 19301681.

It is an arithmetic number, because the mean of its divisors is an integer number (1004383800).

Almost surely, 2^40203233120 is an apocalyptic number.

40203233120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40203233120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48210422400).

40203233120 is an abundant number, since it is smaller than the sum of its proper divisors (56217611680).

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

40203233120 is a wasteful number, since it uses less digits than its factorization.

40203233120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868 (or 3860 counting only the distinct ones).

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

Adding to 40203233120 its reverse (2133230204), we get a palindrome (42336463324).

The spelling of 40203233120 in words is "forty billion, two hundred three million, two hundred thirty-three thousand, one hundred twenty".