311111001112 has 32 divisors (see below), whose sum is σ = 590222476800. Its totient is φ = 153725796864.

The previous prime is 311111001101. The next prime is 311111001127. The reversal of 311111001112 is 211100111113.

It is a junction number, because it is equal to n+sod(n) for n = 311111001092 and 311111001101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131793 + ... + 799744.

It is an arithmetic number, because the mean of its divisors is an integer number (18444452400).

Almost surely, 2^311111001112 is an apocalyptic number.

It is an amenable number.

311111001112 is a deficient number, since it is larger than the sum of its proper divisors (279111475688).

311111001112 is a wasteful number, since it uses less digits than its factorization.

311111001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932035 (or 932031 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 311111001112 its reverse (211100111113), we get a palindrome (522211112225).

It can be divided in two parts, 311111001 and 112, that added together give a palindrome (311111113).

The spelling of 311111001112 in words is "three hundred eleven billion, one hundred eleven million, one thousand, one hundred twelve".