312102213101 has 4 divisors (see below), whose sum is σ = 356688243552. Its totient is φ = 267516182652.

The previous prime is 312102213079. The next prime is 312102213109. The reversal of 312102213101 is 101312201213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101312201213 = 31 ⋅3268135523.

It is a cyclic number.

It is not a de Polignac number, because 312102213101 - 2²² = 312098018797 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 312102213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312102213109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22293015215 + ... + 22293015228.

It is an arithmetic number, because the mean of its divisors is an integer number (89172060888).

Almost surely, 2^312102213101 is an apocalyptic number.

It is an amenable number.

312102213101 is a deficient number, since it is larger than the sum of its proper divisors (44586030451).

312102213101 is an equidigital number, since it uses as much as digits as its factorization.

312102213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44586030450.

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

Adding to 312102213101 its reverse (101312201213), we get a palindrome (413414414314).

The spelling of 312102213101 in words is "three hundred twelve billion, one hundred two million, two hundred thirteen thousand, one hundred one".