203130030431 has 2 divisors, whose sum is σ = 203130030432. Its totient is φ = 203130030430.

The previous prime is 203130030413. The next prime is 203130030443. The reversal of 203130030431 is 134030031302.

Together with previous prime (203130030413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203130030431 - 2¹⁸ = 203129768287 is a prime.

It is a super-2 number, since 2×203130030431² (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 (203130035431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101565015215 + 101565015216.

It is an arithmetic number, because the mean of its divisors is an integer number (101565015216).

Almost surely, 2^203130030431 is an apocalyptic number.

203130030431 is a deficient number, since it is larger than the sum of its proper divisors (1).

203130030431 is an equidigital number, since it uses as much as digits as its factorization.

203130030431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203130030431 its reverse (134030031302), we get a palindrome (337160061733).

The spelling of 203130030431 in words is "two hundred three billion, one hundred thirty million, thirty thousand, four hundred thirty-one".