1322100231320 has 64 divisors (see below), whose sum is σ = 3245505200640. Its totient is φ = 480711856000.

The previous prime is 1322100231289. The next prime is 1322100231373. The reversal of 1322100231320 is 231320012231.

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 = 1322100231292 and 1322100231301.

It is a congruent number.

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, 4045139 + ... + 4359741.

It is an arithmetic number, because the mean of its divisors is an integer number (50711018760).

Almost surely, 2^{1322100231320} is an apocalyptic number.

1322100231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322100231320 is an abundant number, since it is smaller than the sum of its proper divisors (1923404969320).

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

1322100231320 is a wasteful number, since it uses less digits than its factorization.

1322100231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324176 (or 324172 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1322100231320 its reverse (231320012231), we get a palindrome (1553420243551).

The spelling of 1322100231320 in words is "one trillion, three hundred twenty-two billion, one hundred million, two hundred thirty-one thousand, three hundred twenty".