311012113010111 has 4 divisors (see below), whose sum is σ = 311012771833224. Its totient is φ = 311011454187000.

The previous prime is 311012113010077. The next prime is 311012113010117. The reversal of 311012113010111 is 111010311210113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311012113010111 - 2¹⁸ = 311012112747967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311012113010111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311012113010117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328702940 + ... + 329647761.

It is an arithmetic number, because the mean of its divisors is an integer number (77753192958306).

Almost surely, 2^{311012113010111} is an apocalyptic number.

311012113010111 is a deficient number, since it is larger than the sum of its proper divisors (658823113).

311012113010111 is an equidigital number, since it uses as much as digits as its factorization.

311012113010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658823112.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 311012113010111 its reverse (111010311210113), we get a palindrome (422022424220224).

The spelling of 311012113010111 in words is "three hundred eleven trillion, twelve billion, one hundred thirteen million, ten thousand, one hundred eleven".