133031326121 has 2 divisors, whose sum is σ = 133031326122. Its totient is φ = 133031326120.

The previous prime is 133031326093. The next prime is 133031326147. The reversal of 133031326121 is 121623130331.

It is an a-pointer prime, because the next prime (133031326147) can be obtained adding 133031326121 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106523904400 + 26507421721 = 326380^2 + 162811^2 .

It is a cyclic number.

It is not a de Polignac number, because 133031326121 - 2³⁴ = 115851456937 is a prime.

It is not a weakly prime, because it can be changed into another prime (133031326151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66515663060 + 66515663061.

It is an arithmetic number, because the mean of its divisors is an integer number (66515663061).

Almost surely, 2^133031326121 is an apocalyptic number.

It is an amenable number.

133031326121 is a deficient number, since it is larger than the sum of its proper divisors (1).

133031326121 is an equidigital number, since it uses as much as digits as its factorization.

133031326121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 133031326121 its reverse (121623130331), we get a palindrome (254654456452).

The spelling of 133031326121 in words is "one hundred thirty-three billion, thirty-one million, three hundred twenty-six thousand, one hundred twenty-one".