1103111232312 has 32 divisors (see below), whose sum is σ = 2759481561600. Its totient is φ = 367476613344.

The previous prime is 1103111232299. The next prime is 1103111232337. The reversal of 1103111232312 is 2132321113011.

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, 14156008 + ... + 14233719.

It is an arithmetic number, because the mean of its divisors is an integer number (86233798800).

Almost surely, 2^{1103111232312} is an apocalyptic number.

1103111232312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103111232312 is an abundant number, since it is smaller than the sum of its proper divisors (1656370329288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103111232312 is a wasteful number, since it uses less digits than its factorization.

1103111232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28391355 (or 28391351 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1103111232312 its reverse (2132321113011), we get a palindrome (3235432345323).

The spelling of 1103111232312 in words is "one trillion, one hundred three billion, one hundred eleven million, two hundred thirty-two thousand, three hundred twelve".