1305642436132 has 12 divisors (see below), whose sum is σ = 2285873349760. Its totient is φ = 652535764776.

The previous prime is 1305642436123. The next prime is 1305642436139. The reversal of 1305642436132 is 2316342465031.

It is not an unprimeable number, because it can be changed into a prime (1305642436139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71353032 + ... + 71371327.

Almost surely, 2^{1305642436132} is an apocalyptic number.

It is an amenable number.

1305642436132 is a deficient number, since it is larger than the sum of its proper divisors (980230913628).

1305642436132 is a wasteful number, since it uses less digits than its factorization.

1305642436132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142726650 (or 142726648 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 1305642436132 in words is "one trillion, three hundred five billion, six hundred forty-two million, four hundred thirty-six thousand, one hundred thirty-two".