125204451443 has 2 divisors, whose sum is σ = 125204451444. Its totient is φ = 125204451442.

The previous prime is 125204451431. The next prime is 125204451457. The reversal of 125204451443 is 344154402521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (344154402521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125204451443 - 2⁸ = 125204451187 is a prime.

It is a super-2 number, since 2×125204451443² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125204453443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62602225721 + 62602225722.

It is an arithmetic number, because the mean of its divisors is an integer number (62602225722).

Almost surely, 2^125204451443 is an apocalyptic number.

125204451443 is a deficient number, since it is larger than the sum of its proper divisors (1).

125204451443 is an equidigital number, since it uses as much as digits as its factorization.

125204451443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 125204451443 its reverse (344154402521), we get a palindrome (469358853964).

The spelling of 125204451443 in words is "one hundred twenty-five billion, two hundred four million, four hundred fifty-one thousand, four hundred forty-three".