20042001313040 has 120 divisors (see below), whose sum is σ = 54235383570432. Its totient is φ = 6867746538240.

The previous prime is 20042001312947. The next prime is 20042001313043. The reversal of 20042001313040 is 4031310024002.

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

It is not an unprimeable number, because it can be changed into a prime (20042001313043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5687537 + ... + 8510703.

Almost surely, 2^{20042001313040} is an apocalyptic number.

20042001313040 is a gapful number since it is divisible by the number (20) 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 20042001313040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27117691785216).

20042001313040 is an abundant number, since it is smaller than the sum of its proper divisors (34193382257392).

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

20042001313040 is a wasteful number, since it uses less digits than its factorization.

20042001313040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825005 (or 2824992 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20042001313040 its reverse (4031310024002), we get a palindrome (24073311337042).

The spelling of 20042001313040 in words is "twenty trillion, forty-two billion, one million, three hundred thirteen thousand, forty".