11020203031 has 2 divisors, whose sum is σ = 11020203032. Its totient is φ = 11020203030.

The previous prime is 11020203011. The next prime is 11020203041. The reversal of 11020203031 is 13030202011.

11020203031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11020203031 - 2²³ = 11011814423 is a prime.

It is a super-2 number, since 2×11020203031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020203011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510101515 + 5510101516.

It is an arithmetic number, because the mean of its divisors is an integer number (5510101516).

Almost surely, 2^11020203031 is an apocalyptic number.

11020203031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020203031 is an equidigital number, since it uses as much as digits as its factorization.

11020203031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 11020203031 its reverse (13030202011), we get a palindrome (24050405042).

The spelling of 11020203031 in words is "eleven billion, twenty million, two hundred three thousand, thirty-one".