20134131097 has 2 divisors, whose sum is σ = 20134131098. Its totient is φ = 20134131096.

The previous prime is 20134131089. The next prime is 20134131137. The reversal of 20134131097 is 79013143102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20022533001 + 111598096 = 141501^2 + 10564^2 .

It is a cyclic number.

It is not a de Polignac number, because 20134131097 - 2³ = 20134131089 is a prime.

It is not a weakly prime, because it can be changed into another prime (20134131197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067065548 + 10067065549.

It is an arithmetic number, because the mean of its divisors is an integer number (10067065549).

Almost surely, 2^20134131097 is an apocalyptic number.

It is an amenable number.

20134131097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134131097 is an equidigital number, since it uses as much as digits as its factorization.

20134131097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

Adding to 20134131097 its reverse (79013143102), we get a palindrome (99147274199).

The spelling of 20134131097 in words is "twenty billion, one hundred thirty-four million, one hundred thirty-one thousand, ninety-seven".