203112202031 has 2 divisors, whose sum is σ = 203112202032. Its totient is φ = 203112202030.

The previous prime is 203112202003. The next prime is 203112202039. The reversal of 203112202031 is 130202211302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203112202031 - 2³⁴ = 185932332847 is a prime.

It is a super-2 number, since 2×203112202031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203112202039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556101015 + 101556101016.

It is an arithmetic number, because the mean of its divisors is an integer number (101556101016).

Almost surely, 2^203112202031 is an apocalyptic number.

203112202031 is a deficient number, since it is larger than the sum of its proper divisors (1).

203112202031 is an equidigital number, since it uses as much as digits as its factorization.

203112202031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203112202031 its reverse (130202211302), we get a palindrome (333314413333).

The spelling of 203112202031 in words is "two hundred three billion, one hundred twelve million, two hundred two thousand, thirty-one".