231321300101 has 2 divisors, whose sum is σ = 231321300102. Its totient is φ = 231321300100.

The previous prime is 231321300097. The next prime is 231321300157. The reversal of 231321300101 is 101003123132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212069460100 + 19251840001 = 460510^2 + 138751^2 .

It is a cyclic number.

It is not a de Polignac number, because 231321300101 - 2² = 231321300097 is a prime.

It is a super-2 number, since 2×231321300101² (a number of 24 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 231321300101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231321350101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115660650050 + 115660650051.

It is an arithmetic number, because the mean of its divisors is an integer number (115660650051).

Almost surely, 2^231321300101 is an apocalyptic number.

It is an amenable number.

231321300101 is a deficient number, since it is larger than the sum of its proper divisors (1).

231321300101 is an equidigital number, since it uses as much as digits as its factorization.

231321300101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 231321300101 its reverse (101003123132), we get a palindrome (332324423233).

The spelling of 231321300101 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred thousand, one hundred one".