134421651121 has 4 divisors (see below), whose sum is σ = 139056880500. Its totient is φ = 129786421744.

The previous prime is 134421651097. The next prime is 134421651139. The reversal of 134421651121 is 121156124431.

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 95288898721 + 39132752400 = 308689^2 + 197820^2 .

It is a cyclic number.

It is not a de Polignac number, because 134421651121 - 2²³ = 134413262513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134421651151) 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, 2317614646 + ... + 2317614703.

It is an arithmetic number, because the mean of its divisors is an integer number (34764220125).

Almost surely, 2^134421651121 is an apocalyptic number.

It is an amenable number.

134421651121 is a deficient number, since it is larger than the sum of its proper divisors (4635229379).

134421651121 is an equidigital number, since it uses as much as digits as its factorization.

134421651121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635229378.

The product of its digits is 5760, while the sum is 31.

Adding to 134421651121 its reverse (121156124431), we get a palindrome (255577775552).

The spelling of 134421651121 in words is "one hundred thirty-four billion, four hundred twenty-one million, six hundred fifty-one thousand, one hundred twenty-one".