1213303220032 has 112 divisors (see below), whose sum is σ = 2450472030720. Its totient is φ = 595948953600.

The previous prime is 1213303219993. The next prime is 1213303220057. The reversal of 1213303220032 is 2300223033121.

It is a junction number, because it is equal to n+sod(n) for n = 1213303219985 and 1213303220012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1377188232 + ... + 1377189112.

It is an arithmetic number, because the mean of its divisors is an integer number (21879214560).

Almost surely, 2^{1213303220032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213303220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225236015360).

1213303220032 is an abundant number, since it is smaller than the sum of its proper divisors (1237168810688).

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

1213303220032 is an equidigital number, since it uses as much as digits as its factorization.

1213303220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1213303220032 its reverse (2300223033121), we get a palindrome (3513526253153).

The spelling of 1213303220032 in words is "one trillion, two hundred thirteen billion, three hundred three million, two hundred twenty thousand, thirty-two".