125515306343 has 4 divisors (see below), whose sum is σ = 143446064400. Its totient is φ = 107584548288.

The previous prime is 125515306337. The next prime is 125515306369. The reversal of 125515306343 is 343603515521.

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

It is not a de Polignac number, because 125515306343 - 2¹⁴ = 125515289959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125515306297 and 125515306306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125515306043) 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, 8965379018 + ... + 8965379031.

It is an arithmetic number, because the mean of its divisors is an integer number (35861516100).

Almost surely, 2^125515306343 is an apocalyptic number.

125515306343 is a deficient number, since it is larger than the sum of its proper divisors (17930758057).

125515306343 is an equidigital number, since it uses as much as digits as its factorization.

125515306343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17930758056.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 125515306343 in words is "one hundred twenty-five billion, five hundred fifteen million, three hundred six thousand, three hundred forty-three".