134230123020021 has 32 divisors (see below), whose sum is σ = 216803124073728. Its totient is φ = 72114273039360.

The previous prime is 134230123019969. The next prime is 134230123020023. The reversal of 134230123020021 is 120020321032431.

It is not a de Polignac number, because 134230123020021 - 2²² = 134230118825717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134230123019973 and 134230123020000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134230123020023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199448730 + ... + 200120603.

It is an arithmetic number, because the mean of its divisors is an integer number (6775097627304).

Almost surely, 2^{134230123020021} is an apocalyptic number.

It is an amenable number.

134230123020021 is a deficient number, since it is larger than the sum of its proper divisors (82573001053707).

134230123020021 is a wasteful number, since it uses less digits than its factorization.

134230123020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399570301.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 134230123020021 its reverse (120020321032431), we get a palindrome (254250444052452).

The spelling of 134230123020021 in words is "one hundred thirty-four trillion, two hundred thirty billion, one hundred twenty-three million, twenty thousand, twenty-one".