131103103120 has 120 divisors (see below), whose sum is σ = 336385344960. Its totient is φ = 47483040000.

The previous prime is 131103103093. The next prime is 131103103123. The reversal of 131103103120 is 21301301131.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 131103103094 and 131103103103.

It is not an unprimeable number, because it can be changed into a prime (131103103123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2402701 + ... + 2456659.

It is an arithmetic number, because the mean of its divisors is an integer number (2803211208).

Almost surely, 2^131103103120 is an apocalyptic number.

131103103120 is a gapful number since it is divisible by the number (10) 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 131103103120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168192672480).

131103103120 is an abundant number, since it is smaller than the sum of its proper divisors (205282241840).

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

131103103120 is a wasteful number, since it uses less digits than its factorization.

131103103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54245 (or 54228 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 131103103120 its reverse (21301301131), we get a palindrome (152404404251).

The spelling of 131103103120 in words is "one hundred thirty-one billion, one hundred three million, one hundred three thousand, one hundred twenty".