134233020021 has 16 divisors (see below), whose sum is σ = 179418032640. Its totient is φ = 89268579840.

The previous prime is 134233020001. The next prime is 134233020083. The reversal of 134233020021 is 120020332431.

It is not a de Polignac number, because 134233020021 - 2²¹ = 134230922869 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 134233020021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134233020001) 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, 2321500 + ... + 2378618.

It is an arithmetic number, because the mean of its divisors is an integer number (11213627040).

Almost surely, 2^134233020021 is an apocalyptic number.

It is an amenable number.

134233020021 is a deficient number, since it is larger than the sum of its proper divisors (45185012619).

134233020021 is a wasteful number, since it uses less digits than its factorization.

134233020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59036.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 134233020021 its reverse (120020332431), we get a palindrome (254253352452).

The spelling of 134233020021 in words is "one hundred thirty-four billion, two hundred thirty-three million, twenty thousand, twenty-one".