1312305451532 has 12 divisors (see below), whose sum is σ = 2298985490760. Its totient is φ = 655452454176.

The previous prime is 1312305451531. The next prime is 1312305451603. The reversal of 1312305451532 is 2351545032131.

It is a happy number.

It is a super-2 number, since 2×1312305451532² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312305451492 and 1312305451501.

It is not an unprimeable number, because it can be changed into a prime (1312305451531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175063682 + ... + 175071177.

It is an arithmetic number, because the mean of its divisors is an integer number (191582124230).

Almost surely, 2^{1312305451532} is an apocalyptic number.

It is an amenable number.

1312305451532 is a deficient number, since it is larger than the sum of its proper divisors (986680039228).

1312305451532 is a wasteful number, since it uses less digits than its factorization.

1312305451532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350135800 (or 350135798 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 1312305451532 in words is "one trillion, three hundred twelve billion, three hundred five million, four hundred fifty-one thousand, five hundred thirty-two".