1131223013103 has 16 divisors (see below), whose sum is σ = 1567004231520. Its totient is φ = 725018456064.

The previous prime is 1131223013087. The next prime is 1131223013117. The reversal of 1131223013103 is 3013103221311.

It is a happy number.

It is not a de Polignac number, because 1131223013103 - 2⁴ = 1131223013087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131223013103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131223011103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27882226 + ... + 27922767.

It is an arithmetic number, because the mean of its divisors is an integer number (97937764470).

Almost surely, 2^{1131223013103} is an apocalyptic number.

1131223013103 is a deficient number, since it is larger than the sum of its proper divisors (435781218417).

1131223013103 is a wasteful number, since it uses less digits than its factorization.

1131223013103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55805258.

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

Adding to 1131223013103 its reverse (3013103221311), we get a palindrome (4144326234414).

The spelling of 1131223013103 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-three million, thirteen thousand, one hundred three".