1220100013323 has 12 divisors (see below), whose sum is σ = 1866035314728. Its totient is φ = 765552949440.

The previous prime is 1220100013283. The next prime is 1220100013381. The reversal of 1220100013323 is 3233100010221.

It is not a de Polignac number, because 1220100013323 - 2¹⁴ = 1220099996939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220100013296 and 1220100013305.

It is not an unprimeable number, because it can be changed into a prime (1220100013123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3987254793 + ... + 3987255098.

It is an arithmetic number, because the mean of its divisors is an integer number (155502942894).

Almost surely, 2^{1220100013323} is an apocalyptic number.

1220100013323 is a deficient number, since it is larger than the sum of its proper divisors (645935301405).

1220100013323 is a wasteful number, since it uses less digits than its factorization.

1220100013323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974509914 (or 7974509911 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1220100013323 its reverse (3233100010221), we get a palindrome (4453200023544).

The spelling of 1220100013323 in words is "one trillion, two hundred twenty billion, one hundred million, thirteen thousand, three hundred twenty-three".