133131013223 has 4 divisors (see below), whose sum is σ = 143371860408. Its totient is φ = 122890166040.

The previous prime is 133131013201. The next prime is 133131013231. The reversal of 133131013223 is 322310131331.

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 133131013223 - 2¹⁴ = 133130996839 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 (133131013123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5120423573 + ... + 5120423598.

It is an arithmetic number, because the mean of its divisors is an integer number (35842965102).

Almost surely, 2^133131013223 is an apocalyptic number.

133131013223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133131013223 is a deficient number, since it is larger than the sum of its proper divisors (10240847185).

133131013223 is a wasteful number, since it uses less digits than its factorization.

133131013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240847184.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133131013223 its reverse (322310131331), we get a palindrome (455441144554).

The spelling of 133131013223 in words is "one hundred thirty-three billion, one hundred thirty-one million, thirteen thousand, two hundred twenty-three".