203020131223211 has 2 divisors, whose sum is σ = 203020131223212. Its totient is φ = 203020131223210.

The previous prime is 203020131223127. The next prime is 203020131223249. The reversal of 203020131223211 is 112322131020302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203020131223211 is a prime.

It is a super-2 number, since 2×203020131223211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203020133223211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101510065611605 + 101510065611606.

It is an arithmetic number, because the mean of its divisors is an integer number (101510065611606).

Almost surely, 2^{203020131223211} is an apocalyptic number.

203020131223211 is a deficient number, since it is larger than the sum of its proper divisors (1).

203020131223211 is an equidigital number, since it uses as much as digits as its factorization.

203020131223211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 203020131223211 its reverse (112322131020302), we get a palindrome (315342262243513).

The spelling of 203020131223211 in words is "two hundred three trillion, twenty billion, one hundred thirty-one million, two hundred twenty-three thousand, two hundred eleven".