1245402112231 has 2 divisors, whose sum is σ = 1245402112232. Its totient is φ = 1245402112230.

The previous prime is 1245402112223. The next prime is 1245402112259. The reversal of 1245402112231 is 1322112045421.

It is a happy number.

It is an a-pointer prime, because the next prime (1245402112259) can be obtained adding 1245402112231 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1245402112231 - 2³ = 1245402112223 is a prime.

It is a super-2 number, since 2×1245402112231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1245402112231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245402112271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622701056115 + 622701056116.

It is an arithmetic number, because the mean of its divisors is an integer number (622701056116).

Almost surely, 2^{1245402112231} is an apocalyptic number.

1245402112231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245402112231 is an equidigital number, since it uses as much as digits as its factorization.

1245402112231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1245402112231 its reverse (1322112045421), we get a palindrome (2567514157652).

The spelling of 1245402112231 in words is "one trillion, two hundred forty-five billion, four hundred two million, one hundred twelve thousand, two hundred thirty-one".