1230113431 has 2 divisors, whose sum is σ = 1230113432. Its totient is φ = 1230113430.

The previous prime is 1230113429. The next prime is 1230113459. The reversal of 1230113431 is 1343110321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230113431 - 2¹ = 1230113429 is a prime.

It is a super-2 number, since 2×1230113431² = 3026358106253183522, which contains 22 as substring.

Together with 1230113429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1230113399 and 1230113408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230113461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615056715 + 615056716.

It is an arithmetic number, because the mean of its divisors is an integer number (615056716).

Almost surely, 2^1230113431 is an apocalyptic number.

1230113431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230113431 is an equidigital number, since it uses as much as digits as its factorization.

1230113431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1230113431 is about 35072.9729421388. The cubic root of 1230113431 is about 1071.4742048991.

Adding to 1230113431 its reverse (1343110321), we get a palindrome (2573223752).

The spelling of 1230113431 in words is "one billion, two hundred thirty million, one hundred thirteen thousand, four hundred thirty-one".