111203020131031 has 2 divisors, whose sum is σ = 111203020131032. Its totient is φ = 111203020131030.

The previous prime is 111203020130959. The next prime is 111203020131083. The reversal of 111203020131031 is 130131020302111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111203020131031 - 2¹⁵ = 111203020098263 is a prime.

It is a super-2 number, since 2×111203020131031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111203020131131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55601510065515 + 55601510065516.

It is an arithmetic number, because the mean of its divisors is an integer number (55601510065516).

Almost surely, 2^{111203020131031} is an apocalyptic number.

111203020131031 is a deficient number, since it is larger than the sum of its proper divisors (1).

111203020131031 is an equidigital number, since it uses as much as digits as its factorization.

111203020131031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111203020131031 its reverse (130131020302111), we get a palindrome (241334040433142).

The spelling of 111203020131031 in words is "one hundred eleven trillion, two hundred three billion, twenty million, one hundred thirty-one thousand, thirty-one".