311042111 has 6 divisors (see below), whose sum is σ = 316228536. Its totient is φ = 305939400.

The previous prime is 311042093. The next prime is 311042129. The reversal of 311042111 is 111240113.

It is an interprime number because it is at equal distance from previous prime (311042093) and next prime (311042129).

It is not a de Polignac number, because 311042111 - 2¹⁸ = 310779967 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 (311042161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38075 + ... + 45516.

It is an arithmetic number, because the mean of its divisors is an integer number (52704756).

Almost surely, 2^311042111 is an apocalyptic number.

311042111 is a deficient number, since it is larger than the sum of its proper divisors (5186425).

311042111 is an frugal number, since it uses more digits than its factorization.

311042111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83713 (or 83652 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 311042111 is about 17636.3859960027. The cubic root of 311042111 is about 677.5474736050.

Adding to 311042111 its reverse (111240113), we get a palindrome (422282224).

The spelling of 311042111 in words is "three hundred eleven million, forty-two thousand, one hundred eleven".