1251351032325 has 12 divisors (see below), whose sum is σ = 2068900373568. Its totient is φ = 667387217200.

The previous prime is 1251351032311. The next prime is 1251351032359. The reversal of 1251351032325 is 5232301531521.

It is not a de Polignac number, because 1251351032325 - 2¹⁸ = 1251350770181 is a prime.

It is a super-2 number, since 2×1251351032325² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8342340141 + ... + 8342340290.

It is an arithmetic number, because the mean of its divisors is an integer number (172408364464).

Almost surely, 2^{1251351032325} is an apocalyptic number.

1251351032325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1251351032325 is a deficient number, since it is larger than the sum of its proper divisors (817549341243).

1251351032325 is a wasteful number, since it uses less digits than its factorization.

1251351032325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16684680444 (or 16684680439 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 1251351032325 its reverse (5232301531521), we get a palindrome (6483652563846).

The spelling of 1251351032325 in words is "one trillion, two hundred fifty-one billion, three hundred fifty-one million, thirty-two thousand, three hundred twenty-five".