133031212551 has 6 divisors (see below), whose sum is σ = 192156195920. Its totient is φ = 88687475028.

The previous prime is 133031212543. The next prime is 133031212577. The reversal of 133031212551 is 155212130331.

133031212551 is a `hidden beast` number, since 1 + 330 + 312 + 12 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 133031212551 - 2³ = 133031212543 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 (133031212511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7390622911 + ... + 7390622928.

Almost surely, 2^133031212551 is an apocalyptic number.

133031212551 is a deficient number, since it is larger than the sum of its proper divisors (59124983369).

133031212551 is a wasteful number, since it uses less digits than its factorization.

133031212551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14781245845 (or 14781245842 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 133031212551 its reverse (155212130331), we get a palindrome (288243342882).

The spelling of 133031212551 in words is "one hundred thirty-three billion, thirty-one million, two hundred twelve thousand, five hundred fifty-one".