311446532145 has 16 divisors (see below), whose sum is σ = 569502230400. Its totient is φ = 142375557504.

The previous prime is 311446532141. The next prime is 311446532161. The reversal of 311446532145 is 541235644113.

It is not a de Polignac number, because 311446532145 - 2² = 311446532141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311446532141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483078620 + ... + 1483078829.

It is an arithmetic number, because the mean of its divisors is an integer number (35593889400).

Almost surely, 2^311446532145 is an apocalyptic number.

311446532145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

311446532145 is a deficient number, since it is larger than the sum of its proper divisors (258055698255).

311446532145 is a wasteful number, since it uses less digits than its factorization.

311446532145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966157464.

The product of its digits is 172800, while the sum is 39.

The spelling of 311446532145 in words is "three hundred eleven billion, four hundred forty-six million, five hundred thirty-two thousand, one hundred forty-five".