312106030231 has 2 divisors, whose sum is σ = 312106030232. Its totient is φ = 312106030230.

The previous prime is 312106030217. The next prime is 312106030261. The reversal of 312106030231 is 132030601213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312106030231 - 2³⁵ = 277746291863 is a prime.

It is a super-2 number, since 2×312106030231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312106030261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156053015115 + 156053015116.

It is an arithmetic number, because the mean of its divisors is an integer number (156053015116).

Almost surely, 2^312106030231 is an apocalyptic number.

312106030231 is a deficient number, since it is larger than the sum of its proper divisors (1).

312106030231 is an equidigital number, since it uses as much as digits as its factorization.

312106030231 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 22.

Adding to 312106030231 its reverse (132030601213), we get a palindrome (444136631444).

The spelling of 312106030231 in words is "three hundred twelve billion, one hundred six million, thirty thousand, two hundred thirty-one".