134121023021 has 16 divisors (see below), whose sum is σ = 141876092160. Its totient is φ = 126535939200.

The previous prime is 134121023011. The next prime is 134121023039. The reversal of 134121023021 is 120320121431.

It is a cyclic number.

It is not a de Polignac number, because 134121023021 - 2³⁰ = 133047281197 is a prime.

It is a super-2 number, since 2×134121023021² (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 = 134121022984 and 134121023002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134121023011) 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, 501185 + ... + 720713.

It is an arithmetic number, because the mean of its divisors is an integer number (8867255760).

Almost surely, 2^134121023021 is an apocalyptic number.

It is an amenable number.

134121023021 is a deficient number, since it is larger than the sum of its proper divisors (7755069139).

134121023021 is a wasteful number, since it uses less digits than its factorization.

134121023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219916.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 134121023021 its reverse (120320121431), we get a palindrome (254441144452).

The spelling of 134121023021 in words is "one hundred thirty-four billion, one hundred twenty-one million, twenty-three thousand, twenty-one".