351120031225 has 6 divisors (see below), whose sum is σ = 435388838750. Its totient is φ = 280896024960.

The previous prime is 351120031049. The next prime is 351120031247. The reversal of 351120031225 is 522130021153.

It can be written as a sum of positive squares in 3 ways, for example, as 12848675904 + 338271355321 = 113352^2 + 581611^2 .

It is not a de Polignac number, because 351120031225 - 2³¹ = 348972547577 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: 14044801249 = 351120031225 / (3 + 5 + 1 + 1 + 2 + 0 + 0 + 3 + 1 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 351120031225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7022400600 + ... + 7022400649.

Almost surely, 2^351120031225 is an apocalyptic number.

It is an amenable number.

351120031225 is a deficient number, since it is larger than the sum of its proper divisors (84268807525).

351120031225 is a wasteful number, since it uses less digits than its factorization.

351120031225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14044801259 (or 14044801254 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 351120031225 its reverse (522130021153), we get a palindrome (873250052378).

The spelling of 351120031225 in words is "three hundred fifty-one billion, one hundred twenty million, thirty-one thousand, two hundred twenty-five".