125207623543 has 4 divisors (see below), whose sum is σ = 125246499048. Its totient is φ = 125168748040.

The previous prime is 125207623493. The next prime is 125207623589. The reversal of 125207623543 is 345326702521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125207623543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125207623496 and 125207623505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125207623843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19432921 + ... + 19439362.

It is an arithmetic number, because the mean of its divisors is an integer number (31311624762).

Almost surely, 2^125207623543 is an apocalyptic number.

125207623543 is a deficient number, since it is larger than the sum of its proper divisors (38875505).

125207623543 is an equidigital number, since it uses as much as digits as its factorization.

125207623543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38875504.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 125207623543 in words is "one hundred twenty-five billion, two hundred seven million, six hundred twenty-three thousand, five hundred forty-three".