1245102250123 has 2 divisors, whose sum is σ = 1245102250124. Its totient is φ = 1245102250122.

The previous prime is 1245102250061. The next prime is 1245102250129. The reversal of 1245102250123 is 3210522015421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1245102250123 is a prime.

It is a super-2 number, since 2×1245102250123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245102250091 and 1245102250100.

It is not a weakly prime, because it can be changed into another prime (1245102250129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622551125061 + 622551125062.

It is an arithmetic number, because the mean of its divisors is an integer number (622551125062).

Almost surely, 2^{1245102250123} is an apocalyptic number.

1245102250123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245102250123 is an equidigital number, since it uses as much as digits as its factorization.

1245102250123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1245102250123 its reverse (3210522015421), we get a palindrome (4455624265544).

The spelling of 1245102250123 in words is "one trillion, two hundred forty-five billion, one hundred two million, two hundred fifty thousand, one hundred twenty-three".