1251350012523 has 16 divisors (see below), whose sum is σ = 1802238722816. Its totient is φ = 767735068320.

The previous prime is 1251350012503. The next prime is 1251350012659. The reversal of 1251350012523 is 3252100531521.

It is not a de Polignac number, because 1251350012523 - 2¹⁷ = 1251349881451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251350012503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48455215 + ... + 48481032.

It is an arithmetic number, because the mean of its divisors is an integer number (112639920176).

Almost surely, 2^{1251350012523} is an apocalyptic number.

1251350012523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1251350012523 is a deficient number, since it is larger than the sum of its proper divisors (550888710293).

1251350012523 is a wasteful number, since it uses less digits than its factorization.

1251350012523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96936594.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 1251350012523 in words is "one trillion, two hundred fifty-one billion, three hundred fifty million, twelve thousand, five hundred twenty-three".