20235174371 has 2 divisors, whose sum is σ = 20235174372. Its totient is φ = 20235174370.

The previous prime is 20235174319. The next prime is 20235174373. The reversal of 20235174371 is 17347153202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20235174371 - 2¹⁰ = 20235173347 is a prime.

Together with 20235174373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20235174373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10117587185 + 10117587186.

It is an arithmetic number, because the mean of its divisors is an integer number (10117587186).

Almost surely, 2^20235174371 is an apocalyptic number.

20235174371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20235174371 is an equidigital number, since it uses as much as digits as its factorization.

20235174371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 20235174371 in words is "twenty billion, two hundred thirty-five million, one hundred seventy-four thousand, three hundred seventy-one".