133433043402021 has 8 divisors (see below), whose sum is σ = 194084426766624. Its totient is φ = 80868511152720.

The previous prime is 133433043402017. The next prime is 133433043402031. The reversal of 133433043402021 is 120204340334331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133433043402021 - 2² = 133433043402017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4043425557637 = 133433043402021 / (1 + 3 + 3 + 4 + 3 + 3 + 0 + 4 + 3 + 4 + 0 + 2 + 0 + 2 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133433043402031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2021712778786 + ... + 2021712778851.

It is an arithmetic number, because the mean of its divisors is an integer number (24260553345828).

Almost surely, 2^{133433043402021} is an apocalyptic number.

133433043402021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133433043402021 is a deficient number, since it is larger than the sum of its proper divisors (60651383364603).

133433043402021 is a wasteful number, since it uses less digits than its factorization.

133433043402021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043425557651.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 133433043402021 its reverse (120204340334331), we get a palindrome (253637383736352).

The spelling of 133433043402021 in words is "one hundred thirty-three trillion, four hundred thirty-three billion, forty-three million, four hundred two thousand, twenty-one".