2313221420 has 12 divisors (see below), whose sum is σ = 4857765024. Its totient is φ = 925288560.

The previous prime is 2313221401. The next prime is 2313221423. The reversal of 2313221420 is 241223132.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 115661071 = 2313221420 / (2 + 3 + 1 + 3 + 2 + 2 + 1 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2313221392 and 2313221401.

It is not an unprimeable number, because it can be changed into a prime (2313221423) 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, 57830516 + ... + 57830555.

It is an arithmetic number, because the mean of its divisors is an integer number (404813752).

Almost surely, 2^2313221420 is an apocalyptic number.

2313221420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2313221420 is an abundant number, since it is smaller than the sum of its proper divisors (2544543604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2313221420 is a wasteful number, since it uses less digits than its factorization.

2313221420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115661080 (or 115661078 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2313221420 is about 48095.9605372426. The cubic root of 2313221420 is about 1322.5306175113.

Adding to 2313221420 its reverse (241223132), we get a palindrome (2554444552).

The spelling of 2313221420 in words is "two billion, three hundred thirteen million, two hundred twenty-one thousand, four hundred twenty".