133400312443021 has 16 divisors (see below), whose sum is σ = 144098826246144. Its totient is φ = 122764432230144.

The previous prime is 133400312442913. The next prime is 133400312443033. The reversal of 133400312443021 is 120344213004331.

It is a cyclic number.

It is not a de Polignac number, because 133400312443021 - 2⁷ = 133400312442893 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 (133400312443121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10695381 + ... + 19524133.

It is an arithmetic number, because the mean of its divisors is an integer number (9006176640384).

Almost surely, 2^{133400312443021} is an apocalyptic number.

It is an amenable number.

133400312443021 is a deficient number, since it is larger than the sum of its proper divisors (10698513803123).

133400312443021 is a wasteful number, since it uses less digits than its factorization.

133400312443021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8832300.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 133400312443021 its reverse (120344213004331), we get a palindrome (253744525447352).

The spelling of 133400312443021 in words is "one hundred thirty-three trillion, four hundred billion, three hundred twelve million, four hundred forty-three thousand, twenty-one".