134442134343021 has 64 divisors (see below), whose sum is σ = 189701297971200. Its totient is φ = 84519339480576.

The previous prime is 134442134342981. The next prime is 134442134343061. The reversal of 134442134343021 is 120343431244431.

It is an interprime number because it is at equal distance from previous prime (134442134342981) and next prime (134442134343061).

It is not a de Polignac number, because 134442134343021 - 2¹¹ = 134442134340973 is a prime.

It is a super-2 number, since 2×134442134343021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134442134343061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16048955385 + ... + 16048963761.

It is an arithmetic number, because the mean of its divisors is an integer number (2964082780800).

Almost surely, 2^{134442134343021} is an apocalyptic number.

It is an amenable number.

134442134343021 is a deficient number, since it is larger than the sum of its proper divisors (55259163628179).

134442134343021 is a wasteful number, since it uses less digits than its factorization.

134442134343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12538.

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 134442134343021 its reverse (120343431244431), we get a palindrome (254785565587452).

The spelling of 134442134343021 in words is "one hundred thirty-four trillion, four hundred forty-two billion, one hundred thirty-four million, three hundred forty-three thousand, twenty-one".