133021232511 has 16 divisors (see below), whose sum is σ = 188326702944. Its totient is φ = 83227848704.

The previous prime is 133021232507. The next prime is 133021232521. The reversal of 133021232511 is 115232120331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133021232511 - 2² = 133021232507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133021232521) 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, 3676416 + ... + 3712421.

It is an arithmetic number, because the mean of its divisors is an integer number (11770418934).

Almost surely, 2^133021232511 is an apocalyptic number.

133021232511 is a deficient number, since it is larger than the sum of its proper divisors (55305470433).

133021232511 is a wasteful number, since it uses less digits than its factorization.

133021232511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7389210.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 133021232511 its reverse (115232120331), we get a palindrome (248253352842).

The spelling of 133021232511 in words is "one hundred thirty-three billion, twenty-one million, two hundred thirty-two thousand, five hundred eleven".