20031201222331 has 8 divisors (see below), whose sum is σ = 21588929223680. Its totient is φ = 18475882702272.

The previous prime is 20031201222293. The next prime is 20031201222337. The reversal of 20031201222331 is 13322210213002.

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 20031201222331 - 2²⁷ = 20031067004603 is a prime.

It is a super-2 number, since 2×20031201222331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20031201222337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602353050 + ... + 602386303.

It is an arithmetic number, because the mean of its divisors is an integer number (2698616152960).

Almost surely, 2^{20031201222331} is an apocalyptic number.

20031201222331 is a deficient number, since it is larger than the sum of its proper divisors (1557728001349).

20031201222331 is a wasteful number, since it uses less digits than its factorization.

20031201222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204740645.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20031201222331 its reverse (13322210213002), we get a palindrome (33353411435333).

The spelling of 20031201222331 in words is "twenty trillion, thirty-one billion, two hundred one million, two hundred twenty-two thousand, three hundred thirty-one".