20311010012203 has 2 divisors, whose sum is σ = 20311010012204. Its totient is φ = 20311010012202.

The previous prime is 20311010012201. The next prime is 20311010012243. The reversal of 20311010012203 is 30221001011302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20311010012203 - 2¹ = 20311010012201 is a prime.

Together with 20311010012201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20311010012201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155505006101 + 10155505006102.

It is an arithmetic number, because the mean of its divisors is an integer number (10155505006102).

Almost surely, 2^{20311010012203} is an apocalyptic number.

20311010012203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311010012203 is an equidigital number, since it uses as much as digits as its factorization.

20311010012203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20311010012203 its reverse (30221001011302), we get a palindrome (50532011023505).

Subtracting 20311010012203 from its reverse (30221001011302), we obtain a palindrome (9909990999099).

The spelling of 20311010012203 in words is "twenty trillion, three hundred eleven billion, ten million, twelve thousand, two hundred three".