312040333234213 has 4 divisors (see below), whose sum is σ = 312040411885728. Its totient is φ = 312040254582700.

The previous prime is 312040333234171. The next prime is 312040333234229. The reversal of 312040333234213 is 312432333040213.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 312040333234213 - 2²¹ = 312040331137061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312040333204213) 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, 33039763 + ... + 41421088.

It is an arithmetic number, because the mean of its divisors is an integer number (78010102971432).

Almost surely, 2^{312040333234213} is an apocalyptic number.

It is an amenable number.

312040333234213 is a deficient number, since it is larger than the sum of its proper divisors (78651515).

312040333234213 is an equidigital number, since it uses as much as digits as its factorization.

312040333234213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78651514.

The product of its (nonzero) digits is 93312, while the sum is 34.

Adding to 312040333234213 its reverse (312432333040213), we get a palindrome (624472666274426).

The spelling of 312040333234213 in words is "three hundred twelve trillion, forty billion, three hundred thirty-three million, two hundred thirty-four thousand, two hundred thirteen".