20000004022331 has 16 divisors (see below), whose sum is σ = 22396670904960. Its totient is φ = 17748305124480.

The previous prime is 20000004022303. The next prime is 20000004022343. The reversal of 20000004022331 is 13322040000002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20000004022331 is a prime.

It is a super-2 number, since 2×20000004022331² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000004022301) 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, 146660561 + ... + 146796866.

It is an arithmetic number, because the mean of its divisors is an integer number (1399791931560).

Almost surely, 2^{20000004022331} is an apocalyptic number.

20000004022331 is a deficient number, since it is larger than the sum of its proper divisors (2396666882629).

20000004022331 is a wasteful number, since it uses less digits than its factorization.

20000004022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293457674.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20000004022331 its reverse (13322040000002), we get a palindrome (33322044022333).

The spelling of 20000004022331 in words is "twenty trillion, four million, twenty-two thousand, three hundred thirty-one".