1245345521124 has 48 divisors (see below), whose sum is σ = 2954901196800. Its totient is φ = 408145579296.

The previous prime is 1245345521107. The next prime is 1245345521129. The reversal of 1245345521124 is 4211255435421.

It is not an unprimeable number, because it can be changed into a prime (1245345521129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2521662 + ... + 2974805.

It is an arithmetic number, because the mean of its divisors is an integer number (61560441600).

Almost surely, 2^{1245345521124} is an apocalyptic number.

It is an amenable number.

1245345521124 is an abundant number, since it is smaller than the sum of its proper divisors (1709555675676).

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

1245345521124 is a wasteful number, since it uses less digits than its factorization.

1245345521124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496792 (or 5496790 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

The spelling of 1245345521124 in words is "one trillion, two hundred forty-five billion, three hundred forty-five million, five hundred twenty-one thousand, one hundred twenty-four".