113222320420 has 48 divisors (see below), whose sum is σ = 263778379200. Its totient is φ = 40473921920.

The previous prime is 113222320397. The next prime is 113222320423. The reversal of 113222320420 is 24023222311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 113222320391 and 113222320400.

It is not an unprimeable number, because it can be changed into a prime (113222320423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4348435 + ... + 4374394.

It is an arithmetic number, because the mean of its divisors is an integer number (5495382900).

Almost surely, 2^113222320420 is an apocalyptic number.

113222320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113222320420 is an abundant number, since it is smaller than the sum of its proper divisors (150556058780).

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

113222320420 is a wasteful number, since it uses less digits than its factorization.

113222320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8722908 (or 8722906 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 113222320420 its reverse (24023222311), we get a palindrome (137245542731).

The spelling of 113222320420 in words is "one hundred thirteen billion, two hundred twenty-two million, three hundred twenty thousand, four hundred twenty".