231332111213101 has 2 divisors, whose sum is σ = 231332111213102. Its totient is φ = 231332111213100.

The previous prime is 231332111213057. The next prime is 231332111213123. The reversal of 231332111213101 is 101312111233132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160252053264900 + 71080057948201 = 12659070^2 + 8430899^2 .

It is a cyclic number.

It is not a de Polignac number, because 231332111213101 - 2³¹ = 231329963729453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231332111313101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115666055606550 + 115666055606551.

It is an arithmetic number, because the mean of its divisors is an integer number (115666055606551).

Almost surely, 2^{231332111213101} is an apocalyptic number.

It is an amenable number.

231332111213101 is a deficient number, since it is larger than the sum of its proper divisors (1).

231332111213101 is an equidigital number, since it uses as much as digits as its factorization.

231332111213101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 231332111213101 its reverse (101312111233132), we get a palindrome (332644222446233).

The spelling of 231332111213101 in words is "two hundred thirty-one trillion, three hundred thirty-two billion, one hundred eleven million, two hundred thirteen thousand, one hundred one".