133201211231 has 16 divisors (see below), whose sum is σ = 146913274368. Its totient is φ = 119760072000.

The previous prime is 133201211191. The next prime is 133201211243. The reversal of 133201211231 is 132112102331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133201211231 - 2³⁰ = 132127469407 is a prime.

It is a super-2 number, since 2×133201211231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133201211261) 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, 613226 + ... + 801528.

It is an arithmetic number, because the mean of its divisors is an integer number (9182079648).

Almost surely, 2^133201211231 is an apocalyptic number.

133201211231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133201211231 is a deficient number, since it is larger than the sum of its proper divisors (13712063137).

133201211231 is a wasteful number, since it uses less digits than its factorization.

133201211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189022.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 133201211231 its reverse (132112102331), we get a palindrome (265313313562).

The spelling of 133201211231 in words is "one hundred thirty-three billion, two hundred one million, two hundred eleven thousand, two hundred thirty-one".