231342101 has 2 divisors, whose sum is σ = 231342102. Its totient is φ = 231342100.

The previous prime is 231342079. The next prime is 231342109. The reversal of 231342101 is 101243132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129937201 + 101404900 = 11399^2 + 10070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231342101 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231342101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231342109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115671050 + 115671051.

It is an arithmetic number, because the mean of its divisors is an integer number (115671051).

Almost surely, 2^231342101 is an apocalyptic number.

It is an amenable number.

231342101 is a deficient number, since it is larger than the sum of its proper divisors (1).

231342101 is an equidigital number, since it uses as much as digits as its factorization.

231342101 is an evil number, because the sum of its binary digits is even.

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

The square root of 231342101 is about 15209.9342865116. The cubic root of 231342101 is about 613.8819893306.

Adding to 231342101 its reverse (101243132), we get a palindrome (332585233).

The spelling of 231342101 in words is "two hundred thirty-one million, three hundred forty-two thousand, one hundred one".