312031103101 has 2 divisors, whose sum is σ = 312031103102. Its totient is φ = 312031103100.

The previous prime is 312031103093. The next prime is 312031103147. The reversal of 312031103101 is 101301130213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307902912100 + 4128191001 = 554890^2 + 64251^2 .

It is a cyclic number.

It is not a de Polignac number, because 312031103101 - 2³ = 312031103093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312031103161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156015551550 + 156015551551.

It is an arithmetic number, because the mean of its divisors is an integer number (156015551551).

Almost surely, 2^312031103101 is an apocalyptic number.

It is an amenable number.

312031103101 is a deficient number, since it is larger than the sum of its proper divisors (1).

312031103101 is an equidigital number, since it uses as much as digits as its factorization.

312031103101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 312031103101 its reverse (101301130213), we get a palindrome (413332233314).

The spelling of 312031103101 in words is "three hundred twelve billion, thirty-one million, one hundred three thousand, one hundred one".