20010202193 has 4 divisors (see below), whose sum is σ = 20880211008. Its totient is φ = 19140193380.

The previous prime is 20010202187. The next prime is 20010202243. The reversal of 20010202193 is 39120201002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20010202193 - 2⁶ = 20010202129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010202133) 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, 435004373 + ... + 435004418.

It is an arithmetic number, because the mean of its divisors is an integer number (5220052752).

Almost surely, 2^20010202193 is an apocalyptic number.

20010202193 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20010202193 is a deficient number, since it is larger than the sum of its proper divisors (870008815).

20010202193 is an equidigital number, since it uses as much as digits as its factorization.

20010202193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870008814.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20010202193 its reverse (39120201002), we get a palindrome (59130403195).

The spelling of 20010202193 in words is "twenty billion, ten million, two hundred two thousand, one hundred ninety-three".