125105023345 has 4 divisors (see below), whose sum is σ = 150126028020. Its totient is φ = 100084018672.

The previous prime is 125105023327. The next prime is 125105023369. The reversal of 125105023345 is 543320501521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23042025616 + 102062997729 = 151796^2 + 319473^2 .

It is a cyclic number.

It is not a de Polignac number, because 125105023345 - 2⁵ = 125105023313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12510502330 + ... + 12510502339.

It is an arithmetic number, because the mean of its divisors is an integer number (37531507005).

Almost surely, 2^125105023345 is an apocalyptic number.

It is an amenable number.

125105023345 is a deficient number, since it is larger than the sum of its proper divisors (25021004675).

125105023345 is an equidigital number, since it uses as much as digits as its factorization.

125105023345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25021004674.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 125105023345 its reverse (543320501521), we get a palindrome (668425524866).

The spelling of 125105023345 in words is "one hundred twenty-five billion, one hundred five million, twenty-three thousand, three hundred forty-five".