1251104413043 has 2 divisors, whose sum is σ = 1251104413044. Its totient is φ = 1251104413042.

The previous prime is 1251104413033. The next prime is 1251104413133. The reversal of 1251104413043 is 3403144011521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1251104413043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1251104412997 and 1251104413015.

It is not a weakly prime, because it can be changed into another prime (1251104413033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625552206521 + 625552206522.

It is an arithmetic number, because the mean of its divisors is an integer number (625552206522).

Almost surely, 2^{1251104413043} is an apocalyptic number.

1251104413043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251104413043 is an equidigital number, since it uses as much as digits as its factorization.

1251104413043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1251104413043 its reverse (3403144011521), we get a palindrome (4654248424564).

The spelling of 1251104413043 in words is "one trillion, two hundred fifty-one billion, one hundred four million, four hundred thirteen thousand, forty-three".