1103131310232 has 128 divisors (see below), whose sum is σ = 3247204746240. Its totient is φ = 305694051840.

The previous prime is 1103131310221. The next prime is 1103131310249. The reversal of 1103131310232 is 2320131313011.

It is a happy number.

It is a super-2 number, since 2×1103131310232² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1103131310199 and 1103131310208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1690557 + ... + 2250387.

It is an arithmetic number, because the mean of its divisors is an integer number (25368787080).

Almost surely, 2^{1103131310232} is an apocalyptic number.

1103131310232 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 1103131310232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623602373120).

1103131310232 is an abundant number, since it is smaller than the sum of its proper divisors (2144073436008).

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

1103131310232 is a wasteful number, since it uses less digits than its factorization.

1103131310232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560201 (or 560197 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1103131310232 its reverse (2320131313011), we get a palindrome (3423262623243).

The spelling of 1103131310232 in words is "one trillion, one hundred three billion, one hundred thirty-one million, three hundred ten thousand, two hundred thirty-two".