20310201231 has 8 divisors (see below), whose sum is σ = 27157863600. Its totient is φ = 13501336512.

The previous prime is 20310201217. The next prime is 20310201239. The reversal of 20310201231 is 13210201302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20310201231 - 2⁹ = 20310200719 is a prime.

It is a super-2 number, since 2×20310201231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20310201231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310201239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9698190 + ... + 9700283.

It is an arithmetic number, because the mean of its divisors is an integer number (3394732950).

Almost surely, 2^20310201231 is an apocalyptic number.

20310201231 is a deficient number, since it is larger than the sum of its proper divisors (6847662369).

20310201231 is a wasteful number, since it uses less digits than its factorization.

20310201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19398825.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20310201231 its reverse (13210201302), we get a palindrome (33520402533).

The spelling of 20310201231 in words is "twenty billion, three hundred ten million, two hundred one thousand, two hundred thirty-one".