134020210021 has 8 divisors (see below), whose sum is σ = 134842949240. Its totient is φ = 133199909568.

The previous prime is 134020210007. The next prime is 134020210033. The reversal of 134020210021 is 120012020431.

It can be written as a sum of positive squares in 4 ways, for example, as 17613005796 + 116407204225 = 132714^2 + 341185^2 .

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 134020210021 - 2¹⁷ = 134020078949 is a prime.

It is a super-2 number, since 2×134020210021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134020209977 and 134020210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134020210001) 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, 499386 + ... + 719323.

It is an arithmetic number, because the mean of its divisors is an integer number (16855368655).

Almost surely, 2^134020210021 is an apocalyptic number.

It is an amenable number.

134020210021 is a deficient number, since it is larger than the sum of its proper divisors (822739219).

134020210021 is a wasteful number, since it uses less digits than its factorization.

134020210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219383.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 134020210021 its reverse (120012020431), we get a palindrome (254032230452).

The spelling of 134020210021 in words is "one hundred thirty-four billion, twenty million, two hundred ten thousand, twenty-one".