1251345532112 has 40 divisors (see below), whose sum is σ = 2612232556416. Its totient is φ = 577267157376.

The previous prime is 1251345532111. The next prime is 1251345532207. The reversal of 1251345532112 is 2112355431521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251345532111) 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, 1007228 + ... + 1875419.

Almost surely, 2^{1251345532112} is an apocalyptic number.

It is an amenable number.

1251345532112 is an abundant number, since it is smaller than the sum of its proper divisors (1360887024304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251345532112 is a wasteful number, since it uses less digits than its factorization.

1251345532112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884755 (or 2884749 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The spelling of 1251345532112 in words is "one trillion, two hundred fifty-one billion, three hundred forty-five million, five hundred thirty-two thousand, one hundred twelve".