134231120161 has 2 divisors, whose sum is σ = 134231120162. Its totient is φ = 134231120160.

The previous prime is 134231120099. The next prime is 134231120173. The reversal of 134231120161 is 161021132431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122118797025 + 12112323136 = 349455^2 + 110056^2 .

It is a cyclic number.

It is not a de Polignac number, because 134231120161 - 2²⁵ = 134197565729 is a prime.

It is not a weakly prime, because it can be changed into another prime (134231120761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67115560080 + 67115560081.

It is an arithmetic number, because the mean of its divisors is an integer number (67115560081).

Almost surely, 2^134231120161 is an apocalyptic number.

It is an amenable number.

134231120161 is a deficient number, since it is larger than the sum of its proper divisors (1).

134231120161 is an equidigital number, since it uses as much as digits as its factorization.

134231120161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 134231120161 its reverse (161021132431), we get a palindrome (295252252592).

The spelling of 134231120161 in words is "one hundred thirty-four billion, two hundred thirty-one million, one hundred twenty thousand, one hundred sixty-one".