1111320123013 has 2 divisors, whose sum is σ = 1111320123014. Its totient is φ = 1111320123012.

The previous prime is 1111320123007. The next prime is 1111320123073. The reversal of 1111320123013 is 3103210231111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748124663364 + 363195459649 = 864942^2 + 602657^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111320123013 - 2³³ = 1102730188421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111320123073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555660061506 + 555660061507.

It is an arithmetic number, because the mean of its divisors is an integer number (555660061507).

Almost surely, 2^{1111320123013} is an apocalyptic number.

It is an amenable number.

1111320123013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111320123013 is an equidigital number, since it uses as much as digits as its factorization.

1111320123013 is an evil number, because the sum of its binary digits is even.

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

Adding to 1111320123013 its reverse (3103210231111), we get a palindrome (4214530354124).

The spelling of 1111320123013 in words is "one trillion, one hundred eleven billion, three hundred twenty million, one hundred twenty-three thousand, thirteen".