20123174353 has 2 divisors, whose sum is σ = 20123174354. Its totient is φ = 20123174352.

The previous prime is 20123174347. The next prime is 20123174369. The reversal of 20123174353 is 35347132102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18439467264 + 1683707089 = 135792^2 + 41033^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123174353 - 2²⁹ = 19586303441 is a prime.

It is not a weakly prime, because it can be changed into another prime (20123171353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061587176 + 10061587177.

It is an arithmetic number, because the mean of its divisors is an integer number (10061587177).

Almost surely, 2^20123174353 is an apocalyptic number.

It is an amenable number.

20123174353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123174353 is an equidigital number, since it uses as much as digits as its factorization.

20123174353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 20123174353 in words is "twenty billion, one hundred twenty-three million, one hundred seventy-four thousand, three hundred fifty-three".