20031001022231 has 16 divisors (see below), whose sum is σ = 20392709154048. Its totient is φ = 19671588216000.

The previous prime is 20031001022177. The next prime is 20031001022233. The reversal of 20031001022231 is 13222010013002.

It is a cyclic number.

It is not a de Polignac number, because 20031001022231 - 2¹⁸ = 20031000760087 is a prime.

It is a super-2 number, since 2×20031001022231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031001022233) 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, 32895131 + ... + 33498531.

It is an arithmetic number, because the mean of its divisors is an integer number (1274544322128).

Almost surely, 2^{20031001022231} is an apocalyptic number.

20031001022231 is a deficient number, since it is larger than the sum of its proper divisors (361708131817).

20031001022231 is a wasteful number, since it uses less digits than its factorization.

20031001022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605302.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20031001022231 its reverse (13222010013002), we get a palindrome (33253011035233).

The spelling of 20031001022231 in words is "twenty trillion, thirty-one billion, one million, twenty-two thousand, two hundred thirty-one".