133531530223 has 16 divisors (see below), whose sum is σ = 164907441216. Its totient is φ = 105290714880.

The previous prime is 133531530203. The next prime is 133531530233. The reversal of 133531530223 is 322035135331.

It is not a de Polignac number, because 133531530223 - 2⁵ = 133531530191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133531530203) 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, 2477398 + ... + 2530723.

It is an arithmetic number, because the mean of its divisors is an integer number (10306715076).

Almost surely, 2^133531530223 is an apocalyptic number.

133531530223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133531530223 is a deficient number, since it is larger than the sum of its proper divisors (31375910993).

133531530223 is a wasteful number, since it uses less digits than its factorization.

133531530223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008434.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 133531530223 its reverse (322035135331), we get a palindrome (455566665554).

The spelling of 133531530223 in words is "one hundred thirty-three billion, five hundred thirty-one million, five hundred thirty thousand, two hundred twenty-three".