1013221111323 has 16 divisors (see below), whose sum is σ = 1370067286016. Its totient is φ = 665935940160.

The previous prime is 1013221111277. The next prime is 1013221111351. The reversal of 1013221111323 is 3231111223101.

It is not a de Polignac number, because 1013221111323 - 2¹³ = 1013221103131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013221111323.

It is not an unprimeable number, because it can be changed into a prime (1013221111373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510643 + ... + 1512348.

It is an arithmetic number, because the mean of its divisors is an integer number (85629205376).

Almost surely, 2^{1013221111323} is an apocalyptic number.

1013221111323 is a deficient number, since it is larger than the sum of its proper divisors (356846174693).

1013221111323 is a wasteful number, since it uses less digits than its factorization.

1013221111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025354.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1013221111323 its reverse (3231111223101), we get a palindrome (4244332334424).

The spelling of 1013221111323 in words is "one trillion, thirteen billion, two hundred twenty-one million, one hundred eleven thousand, three hundred twenty-three".