311245552443 has 16 divisors (see below), whose sum is σ = 474328500480. Its totient is φ = 177836015136.

The previous prime is 311245552439. The next prime is 311245552463. The reversal of 311245552443 is 344255542113.

It is not a de Polignac number, because 311245552443 - 2² = 311245552439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311245552403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567405 + ... + 971822.

It is an arithmetic number, because the mean of its divisors is an integer number (29645531280).

Almost surely, 2^311245552443 is an apocalyptic number.

311245552443 is a deficient number, since it is larger than the sum of its proper divisors (163082948037).

311245552443 is a wasteful number, since it uses less digits than its factorization.

311245552443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548866.

The product of its digits is 288000, while the sum is 39.

The spelling of 311245552443 in words is "three hundred eleven billion, two hundred forty-five million, five hundred fifty-two thousand, four hundred forty-three".