312202224231113 has 4 divisors (see below), whose sum is σ = 312221955159168. Its totient is φ = 312182493303060.

The previous prime is 312202224231091. The next prime is 312202224231169. The reversal of 312202224231113 is 311132422202213.

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 312202224231113 - 2¹² = 312202224227017 is a prime.

It is a super-2 number, since 2×312202224231113² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312202224233113) 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, 9865440293 + ... + 9865471938.

It is an arithmetic number, because the mean of its divisors is an integer number (78055488789792).

Almost surely, 2^{312202224231113} is an apocalyptic number.

It is an amenable number.

312202224231113 is a deficient number, since it is larger than the sum of its proper divisors (19730928055).

312202224231113 is a wasteful number, since it uses less digits than its factorization.

312202224231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19730928054.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 312202224231113 its reverse (311132422202213), we get a palindrome (623334646433326).

The spelling of 312202224231113 in words is "three hundred twelve trillion, two hundred two billion, two hundred twenty-four million, two hundred thirty-one thousand, one hundred thirteen".