103111211321112 has 64 divisors (see below), whose sum is σ = 257934476482560. Its totient is φ = 34349546016000.

The previous prime is 103111211321101. The next prime is 103111211321189. The reversal of 103111211321112 is 211123112111301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040395353 + ... + 1040494455.

It is an arithmetic number, because the mean of its divisors is an integer number (4030226195040).

Almost surely, 2^{103111211321112} is an apocalyptic number.

103111211321112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103111211321112 is an abundant number, since it is smaller than the sum of its proper divisors (154823265161448).

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

103111211321112 is a wasteful number, since it uses less digits than its factorization.

103111211321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124984 (or 124980 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 103111211321112 its reverse (211123112111301), we get a palindrome (314234323432413).

The spelling of 103111211321112 in words is "one hundred three trillion, one hundred eleven billion, two hundred eleven million, three hundred twenty-one thousand, one hundred twelve".