1312145323516 has 24 divisors (see below), whose sum is σ = 2352328292160. Its totient is φ = 640052448000.

The previous prime is 1312145323513. The next prime is 1312145323607. The reversal of 1312145323516 is 6153235412131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312145323513) 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, 6887341 + ... + 7075291.

It is an arithmetic number, because the mean of its divisors is an integer number (98013678840).

Almost surely, 2^{1312145323516} is an apocalyptic number.

It is an amenable number.

1312145323516 is a deficient number, since it is larger than the sum of its proper divisors (1040182968644).

1312145323516 is a wasteful number, since it uses less digits than its factorization.

1312145323516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230565 (or 230563 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The spelling of 1312145323516 in words is "one trillion, three hundred twelve billion, one hundred forty-five million, three hundred twenty-three thousand, five hundred sixteen".