133021421443 has 8 divisors (see below), whose sum is σ = 137951542080. Its totient is φ = 128114179200.

The previous prime is 133021421369. The next prime is 133021421479. The reversal of 133021421443 is 344124120331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 133021421443 - 2²⁹ = 132484550531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133021421543) 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, 5707755 + ... + 5731012.

It is an arithmetic number, because the mean of its divisors is an integer number (17243942760).

Almost surely, 2^133021421443 is an apocalyptic number.

133021421443 is a deficient number, since it is larger than the sum of its proper divisors (4930120637).

133021421443 is a wasteful number, since it uses less digits than its factorization.

133021421443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439197.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 133021421443 its reverse (344124120331), we get a palindrome (477145541774).

The spelling of 133021421443 in words is "one hundred thirty-three billion, twenty-one million, four hundred twenty-one thousand, four hundred forty-three".