1123203133133 has 4 divisors (see below), whose sum is σ = 1123230207900. Its totient is φ = 1123176058368.

The previous prime is 1123203133121. The next prime is 1123203133139. The reversal of 1123203133133 is 3313313023211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 179705622889 + 943497510244 = 423917^2 + 971338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123203133133 - 2⁶ = 1123203133069 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 (1123203133139) 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, 13475060 + ... + 13558157.

It is an arithmetic number, because the mean of its divisors is an integer number (280807551975).

Almost surely, 2^{1123203133133} is an apocalyptic number.

It is an amenable number.

1123203133133 is a deficient number, since it is larger than the sum of its proper divisors (27074767).

1123203133133 is an equidigital number, since it uses as much as digits as its factorization.

1123203133133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27074766.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1123203133133 its reverse (3313313023211), we get a palindrome (4436516156344).

The spelling of 1123203133133 in words is "one trillion, one hundred twenty-three billion, two hundred three million, one hundred thirty-three thousand, one hundred thirty-three".