1113203213011 has 4 divisors (see below), whose sum is σ = 1113218573512. Its totient is φ = 1113187852512.

The previous prime is 1113203212999. The next prime is 1113203213021. The reversal of 1113203213011 is 1103123023111.

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

It is a cyclic number.

It is not a de Polignac number, because 1113203213011 - 2¹¹ = 1113203210963 is a prime.

It is a super-2 number, since 2×1113203213011² (a number of 25 digits) contains 22 as substring.

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 1113203213011.

It is not an unprimeable number, because it can be changed into a prime (1113203213021) 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, 7571025 + ... + 7716658.

It is an arithmetic number, because the mean of its divisors is an integer number (278304643378).

Almost surely, 2^{1113203213011} is an apocalyptic number.

1113203213011 is a deficient number, since it is larger than the sum of its proper divisors (15360501).

1113203213011 is an equidigital number, since it uses as much as digits as its factorization.

1113203213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15360500.

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

Adding to 1113203213011 its reverse (1103123023111), we get a palindrome (2216326236122).

It can be divided in two parts, 111320 and 3213011, that added together give a triangular number (3324331 = T₂₅₇₈).

The spelling of 1113203213011 in words is "one trillion, one hundred thirteen billion, two hundred three million, two hundred thirteen thousand, eleven".