1103311231023 has 4 divisors (see below), whose sum is σ = 1471081641368. Its totient is φ = 735540820680.

The previous prime is 1103311230997. The next prime is 1103311231031. The reversal of 1103311231023 is 3201321133011.

It is a happy number.

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

It is not a de Polignac number, because 1103311231023 - 2³² = 1099016263727 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 (1103311231093) 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, 183885205168 + ... + 183885205173.

It is an arithmetic number, because the mean of its divisors is an integer number (367770410342).

Almost surely, 2^{1103311231023} is an apocalyptic number.

1103311231023 is a deficient number, since it is larger than the sum of its proper divisors (367770410345).

1103311231023 is an equidigital number, since it uses as much as digits as its factorization.

1103311231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367770410344.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1103311231023 its reverse (3201321133011), we get a palindrome (4304632364034).

The spelling of 1103311231023 in words is "one trillion, one hundred three billion, three hundred eleven million, two hundred thirty-one thousand, twenty-three".