13113031032 has 160 divisors (see below), whose sum is σ = 40343529600. Its totient is φ = 3960830016.

The previous prime is 13113031021. The next prime is 13113031037. The reversal of 13113031032 is 23013031131.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 13113030996 and 13113031014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113031037) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 260023 + ... + 306329.

It is an arithmetic number, because the mean of its divisors is an integer number (252147060).

Almost surely, 2^13113031032 is an apocalyptic number.

13113031032 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 13113031032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20171764800).

13113031032 is an abundant number, since it is smaller than the sum of its proper divisors (27230498568).

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

13113031032 is a wasteful number, since it uses less digits than its factorization.

13113031032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46367 (or 46354 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13113031032 its reverse (23013031131), we get a palindrome (36126062163).

Subtracting 13113031032 from its reverse (23013031131), we obtain a palindrome (9900000099).

The spelling of 13113031032 in words is "thirteen billion, one hundred thirteen million, thirty-one thousand, thirty-two".