113213121320 has 64 divisors (see below), whose sum is σ = 274371995520. Its totient is φ = 41794470144.

The previous prime is 113213121107. The next prime is 113213121331. The reversal of 113213121320 is 23121312311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 113213121292 and 113213121301.

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, 3638549 + ... + 3669531.

It is an arithmetic number, because the mean of its divisors is an integer number (4287062430).

Almost surely, 2^113213121320 is an apocalyptic number.

113213121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113213121320 is an abundant number, since it is smaller than the sum of its proper divisors (161158874200).

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

113213121320 is a wasteful number, since it uses less digits than its factorization.

113213121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38034 (or 38030 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113213121320 its reverse (23121312311), we get a palindrome (136334433631).

The spelling of 113213121320 in words is "one hundred thirteen billion, two hundred thirteen million, one hundred twenty-one thousand, three hundred twenty".