2351315220 has 96 divisors (see below), whose sum is σ = 7159477248. Its totient is φ = 574175232.

The previous prime is 2351315177. The next prime is 2351315371. The reversal of 2351315220 is 225131532.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6589 + ... + 68891.

It is an arithmetic number, because the mean of its divisors is an integer number (74577888).

Almost surely, 2^2351315220 is an apocalyptic number.

2351315220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2351315220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3579738624).

2351315220 is an abundant number, since it is smaller than the sum of its proper divisors (4808162028).

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

2351315220 is a wasteful number, since it uses less digits than its factorization.

2351315220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62369 (or 62367 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2351315220 is about 48490.3621351707. The cubic root of 2351315220 is about 1329.7508757579.

Adding to 2351315220 its reverse (225131532), we get a palindrome (2576446752).

The spelling of 2351315220 in words is "two billion, three hundred fifty-one million, three hundred fifteen thousand, two hundred twenty".