1025112105251 has 8 divisors (see below), whose sum is σ = 1103978484000. Its totient is φ = 946247383872.

The previous prime is 1025112105229. The next prime is 1025112105313. The reversal of 1025112105251 is 1525012115201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1025112105251 - 2⁶ = 1025112105187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025112105251.

It is not an unprimeable number, because it can be changed into a prime (1025112102251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066250 + ... + 1785248.

It is an arithmetic number, because the mean of its divisors is an integer number (137997310500).

Almost surely, 2^{1025112105251} is an apocalyptic number.

1025112105251 is a deficient number, since it is larger than the sum of its proper divisors (78866378749).

1025112105251 is a wasteful number, since it uses less digits than its factorization.

1025112105251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828685.

The product of its (nonzero) digits is 1000, while the sum is 26.

The spelling of 1025112105251 in words is "one trillion, twenty-five billion, one hundred twelve million, one hundred five thousand, two hundred fifty-one".