134031201230021 has 4 divisors (see below), whose sum is σ = 134060357467212. Its totient is φ = 134002044992832.

The previous prime is 134031201229979. The next prime is 134031201230029. The reversal of 134031201230021 is 120032102130431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17192093932225 + 116839107297796 = 4146335^2 + 10809214^2 .

It is a cyclic number.

It is not a de Polignac number, because 134031201230021 - 2⁶ = 134031201229957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134031201230029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14578111700 + ... + 14578120893.

It is an arithmetic number, because the mean of its divisors is an integer number (33515089366803).

Almost surely, 2^{134031201230021} is an apocalyptic number.

It is an amenable number.

134031201230021 is a deficient number, since it is larger than the sum of its proper divisors (29156237191).

134031201230021 is an equidigital number, since it uses as much as digits as its factorization.

134031201230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29156237190.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 134031201230021 its reverse (120032102130431), we get a palindrome (254063303360452).

The spelling of 134031201230021 in words is "one hundred thirty-four trillion, thirty-one billion, two hundred one million, two hundred thirty thousand, twenty-one".