312110223101 has 4 divisors (see below), whose sum is σ = 312616074972. Its totient is φ = 311604371232.

The previous prime is 312110223067. The next prime is 312110223127. The reversal of 312110223101 is 101322011213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46240051225 + 265870171876 = 215035^2 + 515626^2 .

It is a cyclic number.

It is not a de Polignac number, because 312110223101 - 2³⁰ = 311036481277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312110223101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312110223151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252925010 + ... + 252926243.

It is an arithmetic number, because the mean of its divisors is an integer number (78154018743).

Almost surely, 2^312110223101 is an apocalyptic number.

It is an amenable number.

312110223101 is a deficient number, since it is larger than the sum of its proper divisors (505851871).

312110223101 is an equidigital number, since it uses as much as digits as its factorization.

312110223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505851870.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312110223101 its reverse (101322011213), we get a palindrome (413432234314).

The spelling of 312110223101 in words is "three hundred twelve billion, one hundred ten million, two hundred twenty-three thousand, one hundred one".