133021200997 has 2 divisors, whose sum is σ = 133021200998. Its totient is φ = 133021200996.

The previous prime is 133021200931. The next prime is 133021201021. The reversal of 133021200997 is 799002120331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118078827876 + 14942373121 = 343626^2 + 122239^2 .

It is an emirp because it is prime and its reverse (799002120331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133021200997 - 2²³ = 133012812389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133021201997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66510600498 + 66510600499.

It is an arithmetic number, because the mean of its divisors is an integer number (66510600499).

Almost surely, 2^133021200997 is an apocalyptic number.

It is an amenable number.

133021200997 is a deficient number, since it is larger than the sum of its proper divisors (1).

133021200997 is an equidigital number, since it uses as much as digits as its factorization.

133021200997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The spelling of 133021200997 in words is "one hundred thirty-three billion, twenty-one million, two hundred thousand, nine hundred ninety-seven".