1213101203320 has 32 divisors (see below), whose sum is σ = 2737298592000. Its totient is φ = 483850101888.

The previous prime is 1213101203267. The next prime is 1213101203371. The reversal of 1213101203320 is 233021013121.

It is a super-2 number, since 2×1213101203320² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43435224 + ... + 43463143.

It is an arithmetic number, because the mean of its divisors is an integer number (85540581000).

Almost surely, 2^{1213101203320} is an apocalyptic number.

1213101203320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213101203320 is an abundant number, since it is smaller than the sum of its proper divisors (1524197388680).

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

1213101203320 is a wasteful number, since it uses less digits than its factorization.

1213101203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86898727 (or 86898723 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1213101203320 its reverse (233021013121), we get a palindrome (1446122216441).

The spelling of 1213101203320 in words is "one trillion, two hundred thirteen billion, one hundred one million, two hundred three thousand, three hundred twenty".