21313200311318 has 8 divisors (see below), whose sum is σ = 31971469355712. Its totient is φ = 10656043859416.

The previous prime is 21313200311317. The next prime is 21313200311321. The reversal of 21313200311318 is 81311300231312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313200311317) 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, 278100230 + ... + 278176857.

It is an arithmetic number, because the mean of its divisors is an integer number (3996433669464).

Almost surely, 2^{21313200311318} is an apocalyptic number.

21313200311318 is a deficient number, since it is larger than the sum of its proper divisors (10658269044394).

21313200311318 is a wasteful number, since it uses less digits than its factorization.

21313200311318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556296246.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 21313200311318 in words is "twenty-one trillion, three hundred thirteen billion, two hundred million, three hundred eleven thousand, three hundred eighteen".