125123235443 has 2 divisors, whose sum is σ = 125123235444. Its totient is φ = 125123235442.

The previous prime is 125123235437. The next prime is 125123235449. The reversal of 125123235443 is 344532321521.

It is a balanced prime because it is at equal distance from previous prime (125123235437) and next prime (125123235449).

It is a cyclic number.

It is not a de Polignac number, because 125123235443 - 2¹⁴ = 125123219059 is a prime.

It is a super-2 number, since 2×125123235443² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125123235449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62561617721 + 62561617722.

It is an arithmetic number, because the mean of its divisors is an integer number (62561617722).

Almost surely, 2^125123235443 is an apocalyptic number.

125123235443 is a deficient number, since it is larger than the sum of its proper divisors (1).

125123235443 is an equidigital number, since it uses as much as digits as its factorization.

125123235443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 35.

Adding to 125123235443 its reverse (344532321521), we get a palindrome (469655556964).

The spelling of 125123235443 in words is "one hundred twenty-five billion, one hundred twenty-three million, two hundred thirty-five thousand, four hundred forty-three".