1220313321230 has 32 divisors (see below), whose sum is σ = 2201838357600. Its totient is φ = 486953564032.

The previous prime is 1220313321223. The next prime is 1220313321251. The reversal of 1220313321230 is 321233130221.

It is a junction number, because it is equal to n+sod(n) for n = 1220313321196 and 1220313321205.

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, 39983216 + ... + 40013724.

It is an arithmetic number, because the mean of its divisors is an integer number (68807448675).

Almost surely, 2^{1220313321230} is an apocalyptic number.

1220313321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220313321230 is a deficient number, since it is larger than the sum of its proper divisors (981525036370).

1220313321230 is a wasteful number, since it uses less digits than its factorization.

1220313321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39988.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1220313321230 its reverse (321233130221), we get a palindrome (1541546451451).

The spelling of 1220313321230 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, three hundred twenty-one thousand, two hundred thirty".