22303313131213 has 4 divisors (see below), whose sum is σ = 22304357951040. Its totient is φ = 22302268311388.

The previous prime is 22303313131189. The next prime is 22303313131243. The reversal of 22303313131213 is 31213131330322.

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 a de Polignac number, because none of the positive numbers 2^k-22303313131213 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 (22303313131243) 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, 522377893 + ... + 522420586.

It is an arithmetic number, because the mean of its divisors is an integer number (5576089487760).

Almost surely, 2^{22303313131213} is an apocalyptic number.

It is an amenable number.

22303313131213 is a deficient number, since it is larger than the sum of its proper divisors (1044819827).

22303313131213 is a wasteful number, since it uses less digits than its factorization.

22303313131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044819826.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 22303313131213 its reverse (31213131330322), we get a palindrome (53516444461535).

The spelling of 22303313131213 in words is "twenty-two trillion, three hundred three billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred thirteen".