1312451242428 has 24 divisors (see below), whose sum is σ = 3064890261888. Its totient is φ = 437126028976.

The previous prime is 1312451242423. The next prime is 1312451242429. The reversal of 1312451242428 is 8242421542131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312451242423) 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, 44699526 + ... + 44728877.

It is an arithmetic number, because the mean of its divisors is an integer number (127703760912).

Almost surely, 2^{1312451242428} is an apocalyptic number.

It is an amenable number.

1312451242428 is an abundant number, since it is smaller than the sum of its proper divisors (1752439019460).

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

1312451242428 is a wasteful number, since it uses less digits than its factorization.

1312451242428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89429633 (or 89429631 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

Adding to 1312451242428 its reverse (8242421542131), we get a palindrome (9554872784559).

The spelling of 1312451242428 in words is "one trillion, three hundred twelve billion, four hundred fifty-one million, two hundred forty-two thousand, four hundred twenty-eight".