133003221231 has 16 divisors (see below), whose sum is σ = 178422773760. Its totient is φ = 88126587360.

The previous prime is 133003221209. The next prime is 133003221233. The reversal of 133003221231 is 132122300331.

It is not a de Polignac number, because 133003221231 - 2⁵ = 133003221199 is a prime.

It is a super-2 number, since 2×133003221231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133003221198 and 133003221207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133003221233) 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, 1556386 + ... + 1639616.

It is an arithmetic number, because the mean of its divisors is an integer number (11151423360).

Almost surely, 2^133003221231 is an apocalyptic number.

133003221231 is a deficient number, since it is larger than the sum of its proper divisors (45419552529).

133003221231 is a wasteful number, since it uses less digits than its factorization.

133003221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86486.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 133003221231 its reverse (132122300331), we get a palindrome (265125521562).

The spelling of 133003221231 in words is "one hundred thirty-three billion, three million, two hundred twenty-one thousand, two hundred thirty-one".