1111320231403 has 4 divisors (see below), whose sum is σ = 1111322339928. Its totient is φ = 1111318122880.

The previous prime is 1111320231341. The next prime is 1111320231431. The reversal of 1111320231403 is 3041320231111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111320231403 is a prime.

It is a super-3 number, since 3×1111320231403³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111320231473) 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, 508875 + ... + 1575307.

It is an arithmetic number, because the mean of its divisors is an integer number (277830584982).

Almost surely, 2^{1111320231403} is an apocalyptic number.

1111320231403 is a deficient number, since it is larger than the sum of its proper divisors (2108525).

1111320231403 is a wasteful number, since it uses less digits than its factorization.

1111320231403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108524.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1111320231403 its reverse (3041320231111), we get a palindrome (4152640462514).

The spelling of 1111320231403 in words is "one trillion, one hundred eleven billion, three hundred twenty million, two hundred thirty-one thousand, four hundred three".