311981982110 has 16 divisors (see below), whose sum is σ = 561574091232. Its totient is φ = 124791343200.

The previous prime is 311981982089. The next prime is 311981982133. The reversal of 311981982110 is 11289189113.

It is a super-2 number, since 2×311981982110² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296575 + ... + 1518245.

It is an arithmetic number, because the mean of its divisors is an integer number (35098380702).

Almost surely, 2^311981982110 is an apocalyptic number.

311981982110 is a deficient number, since it is larger than the sum of its proper divisors (249592109122).

311981982110 is a wasteful number, since it uses less digits than its factorization.

311981982110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362419.

The product of its (nonzero) digits is 31104, while the sum is 44.

The spelling of 311981982110 in words is "three hundred eleven billion, nine hundred eighty-one million, nine hundred eighty-two thousand, one hundred ten".