101240312231 has 2 divisors, whose sum is σ = 101240312232. Its totient is φ = 101240312230.

The previous prime is 101240312227. The next prime is 101240312237. The reversal of 101240312231 is 132213042101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101240312231 - 2² = 101240312227 is a prime.

It is a super-2 number, since 2×101240312231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101240312237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50620156115 + 50620156116.

It is an arithmetic number, because the mean of its divisors is an integer number (50620156116).

Almost surely, 2^101240312231 is an apocalyptic number.

101240312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

101240312231 is an equidigital number, since it uses as much as digits as its factorization.

101240312231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 101240312231 its reverse (132213042101), we get a palindrome (233453354332).

The spelling of 101240312231 in words is "one hundred one billion, two hundred forty million, three hundred twelve thousand, two hundred thirty-one".