133212122531 has 2 divisors, whose sum is σ = 133212122532. Its totient is φ = 133212122530.

The previous prime is 133212122423. The next prime is 133212122579. The reversal of 133212122531 is 135221212331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133212122531 - 2²⁶ = 133145013667 is a prime.

It is a super-2 number, since 2×133212122531² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133212122531.

It is not a weakly prime, because it can be changed into another prime (133212122731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66606061265 + 66606061266.

It is an arithmetic number, because the mean of its divisors is an integer number (66606061266).

Almost surely, 2^133212122531 is an apocalyptic number.

133212122531 is a deficient number, since it is larger than the sum of its proper divisors (1).

133212122531 is an equidigital number, since it uses as much as digits as its factorization.

133212122531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

Adding to 133212122531 its reverse (135221212331), we get a palindrome (268433334862).

The spelling of 133212122531 in words is "one hundred thirty-three billion, two hundred twelve million, one hundred twenty-two thousand, five hundred thirty-one".