1013111230321 has 4 divisors (see below), whose sum is σ = 1015637692644. Its totient is φ = 1010584768000.

The previous prime is 1013111230279. The next prime is 1013111230333. The reversal of 1013111230321 is 1230321113101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 848793690000 + 164317540321 = 921300^2 + 405361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013111230321 - 2¹¹ = 1013111228273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013111230381) 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, 1263230560 + ... + 1263231361.

It is an arithmetic number, because the mean of its divisors is an integer number (253909423161).

Almost surely, 2^{1013111230321} is an apocalyptic number.

It is an amenable number.

1013111230321 is a deficient number, since it is larger than the sum of its proper divisors (2526462323).

1013111230321 is an equidigital number, since it uses as much as digits as its factorization.

1013111230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526462322.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1013111230321 its reverse (1230321113101), we get a palindrome (2243432343422).

The spelling of 1013111230321 in words is "one trillion, thirteen billion, one hundred eleven million, two hundred thirty thousand, three hundred twenty-one".