1111031232013 has 4 divisors (see below), whose sum is σ = 1111177601248. Its totient is φ = 1110884862780.

The previous prime is 1111031231963. The next prime is 1111031232049. The reversal of 1111031232013 is 3102321301111.

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 1111031232013 - 2⁹ = 1111031231501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111031232083) 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, 73173231 + ... + 73188412.

It is an arithmetic number, because the mean of its divisors is an integer number (277794400312).

Almost surely, 2^{1111031232013} is an apocalyptic number.

It is an amenable number.

1111031232013 is a deficient number, since it is larger than the sum of its proper divisors (146369235).

1111031232013 is an equidigital number, since it uses as much as digits as its factorization.

1111031232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146369234.

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

Adding to 1111031232013 its reverse (3102321301111), we get a palindrome (4213352533124).

The spelling of 1111031232013 in words is "one trillion, one hundred eleven billion, thirty-one million, two hundred thirty-two thousand, thirteen".