133240042212401 has 4 divisors (see below), whose sum is σ = 133821876458100. Its totient is φ = 132658207966704.

The previous prime is 133240042212391. The next prime is 133240042212479. The reversal of 133240042212401 is 104212240042331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63584660052001 + 69655382160400 = 7973999^2 + 8345980^2 .

It is a cyclic number.

It is not a de Polignac number, because 133240042212401 - 2¹⁰ = 133240042211377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133240042212301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290917122506 + ... + 290917122963.

It is an arithmetic number, because the mean of its divisors is an integer number (33455469114525).

Almost surely, 2^{133240042212401} is an apocalyptic number.

It is an amenable number.

133240042212401 is a deficient number, since it is larger than the sum of its proper divisors (581834245699).

133240042212401 is an equidigital number, since it uses as much as digits as its factorization.

133240042212401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581834245698.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 133240042212401 its reverse (104212240042331), we get a palindrome (237452282254732).

The spelling of 133240042212401 in words is "one hundred thirty-three trillion, two hundred forty billion, forty-two million, two hundred twelve thousand, four hundred one".