312232122025 has 6 divisors (see below), whose sum is σ = 387167831342. Its totient is φ = 249785697600.

The previous prime is 312232122023. The next prime is 312232122043. The reversal of 312232122025 is 520221232213.

It can be written as a sum of positive squares in 3 ways, for example, as 9195083881 + 303037038144 = 95891^2 + 550488^2 .

It is not a de Polignac number, because 312232122025 - 2¹ = 312232122023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 12489284881 = 312232122025 / (3 + 1 + 2 + 2 + 3 + 2 + 1 + 2 + 2 + 0 + 2 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312232122023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6244642416 + ... + 6244642465.

Almost surely, 2^312232122025 is an apocalyptic number.

It is an amenable number.

312232122025 is a deficient number, since it is larger than the sum of its proper divisors (74935709317).

312232122025 is a wasteful number, since it uses less digits than its factorization.

312232122025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12489284891 (or 12489284886 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 312232122025 its reverse (520221232213), we get a palindrome (832453354238).

The spelling of 312232122025 in words is "three hundred twelve billion, two hundred thirty-two million, one hundred twenty-two thousand, twenty-five".