2313221025 has 144 divisors (see below), whose sum is σ = 4412842560. Its totient is φ = 1065369600.

The previous prime is 2313221017. The next prime is 2313221033. The reversal of 2313221025 is 5201223132.

It is an interprime number because it is at equal distance from previous prime (2313221017) and next prime (2313221033).

It is not a de Polignac number, because 2313221025 - 2³ = 2313221017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2313220992 and 2313221010.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16884757 + ... + 16884893.

It is an arithmetic number, because the mean of its divisors is an integer number (30644740).

Almost surely, 2^2313221025 is an apocalyptic number.

2313221025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2313221025 is a deficient number, since it is larger than the sum of its proper divisors (2099621535).

2313221025 is a wasteful number, since it uses less digits than its factorization.

2313221025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2313221025 is about 48095.9564308685. The cubic root of 2313221025 is about 1322.5305422339.

Adding to 2313221025 its reverse (5201223132), we get a palindrome (7514444157).

The spelling of 2313221025 in words is "two billion, three hundred thirteen million, two hundred twenty-one thousand, twenty-five".