134203101421 has 4 divisors (see below), whose sum is σ = 134203926592. Its totient is φ = 134202276252.

The previous prime is 134203101397. The next prime is 134203101427. The reversal of 134203101421 is 124101302431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 124101302431 = 109 ⋅1138544059.

It is a cyclic number.

It is not a de Polignac number, because 134203101421 - 2¹⁵ = 134203068653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134203101392 and 134203101401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134203101427) 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, 78405 + ... + 523978.

It is an arithmetic number, because the mean of its divisors is an integer number (33550981648).

Almost surely, 2^134203101421 is an apocalyptic number.

It is an amenable number.

134203101421 is a deficient number, since it is larger than the sum of its proper divisors (825171).

134203101421 is an equidigital number, since it uses as much as digits as its factorization.

134203101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825170.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 134203101421 its reverse (124101302431), we get a palindrome (258304403852).

The spelling of 134203101421 in words is "one hundred thirty-four billion, two hundred three million, one hundred one thousand, four hundred twenty-one".