1013223212321 has 4 divisors (see below), whose sum is σ = 1013559722544. Its totient is φ = 1012886702100.

The previous prime is 1013223212279. The next prime is 1013223212359. The reversal of 1013223212321 is 1232123223101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1013223212321 - 2⁶ = 1013223212257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1013223242321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168250595 + ... + 168256616.

It is an arithmetic number, because the mean of its divisors is an integer number (253389930636).

Almost surely, 2^{1013223212321} is an apocalyptic number.

It is an amenable number.

1013223212321 is a deficient number, since it is larger than the sum of its proper divisors (336510223).

1013223212321 is an equidigital number, since it uses as much as digits as its factorization.

1013223212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336510222.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1013223212321 its reverse (1232123223101), we get a palindrome (2245346435422).

The spelling of 1013223212321 in words is "one trillion, thirteen billion, two hundred twenty-three million, two hundred twelve thousand, three hundred twenty-one".