311160143 has 12 divisors (see below), whose sum is σ = 362793600. Its totient is φ = 266095872.

The previous prime is 311160139. The next prime is 311160167. The reversal of 311160143 is 341061113.

It is not a de Polignac number, because 311160143 - 2² = 311160139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311160133) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14930 + ... + 29072.

It is an arithmetic number, because the mean of its divisors is an integer number (30232800).

Almost surely, 2^311160143 is an apocalyptic number.

311160143 is a deficient number, since it is larger than the sum of its proper divisors (51633457).

311160143 is a wasteful number, since it uses less digits than its factorization.

311160143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14606 (or 14599 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 311160143 is about 17639.7319424077. The cubic root of 311160143 is about 677.6331663637.

The spelling of 311160143 in words is "three hundred eleven million, one hundred sixty thousand, one hundred forty-three".