1252418220043 has 2 divisors, whose sum is σ = 1252418220044. Its totient is φ = 1252418220042.

The previous prime is 1252418220041. The next prime is 1252418220059. The reversal of 1252418220043 is 3400228142521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252418220043 - 2¹ = 1252418220041 is a prime.

Together with 1252418220041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1252418219990 and 1252418220008.

It is not a weakly prime, because it can be changed into another prime (1252418220041) 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, 626209110021 + 626209110022.

It is an arithmetic number, because the mean of its divisors is an integer number (626209110022).

Almost surely, 2^{1252418220043} is an apocalyptic number.

1252418220043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252418220043 is an equidigital number, since it uses as much as digits as its factorization.

1252418220043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 1252418220043 in words is "one trillion, two hundred fifty-two billion, four hundred eighteen million, two hundred twenty thousand, forty-three".