103131023112 has 96 divisors (see below), whose sum is σ = 301131492480. Its totient is φ = 31697527680.

The previous prime is 103131023081. The next prime is 103131023197. The reversal of 103131023112 is 211320131301.

103131023112 is a `hidden beast` number, since 10 + 31 + 310 + 2 + 311 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 792223 + ... + 913169.

It is an arithmetic number, because the mean of its divisors is an integer number (3136786380).

Almost surely, 2^103131023112 is an apocalyptic number.

103131023112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103131023112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150565746240).

103131023112 is an abundant number, since it is smaller than the sum of its proper divisors (198000469368).

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

103131023112 is a wasteful number, since it uses less digits than its factorization.

103131023112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121883 (or 121876 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 103131023112 its reverse (211320131301), we get a palindrome (314451154413).

The spelling of 103131023112 in words is "one hundred three billion, one hundred thirty-one million, twenty-three thousand, one hundred twelve".