125011132243 has 4 divisors (see below), whose sum is σ = 125839020688. Its totient is φ = 124183243800.

The previous prime is 125011132241. The next prime is 125011132291. The reversal of 125011132243 is 342231110521.

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

It is a cyclic number.

It is not a de Polignac number, because 125011132243 - 2¹ = 125011132241 is a prime.

It is a super-2 number, since 2×125011132243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125011132241) 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, 413943996 + ... + 413944297.

It is an arithmetic number, because the mean of its divisors is an integer number (31459755172).

Almost surely, 2^125011132243 is an apocalyptic number.

125011132243 is a deficient number, since it is larger than the sum of its proper divisors (827888445).

125011132243 is an equidigital number, since it uses as much as digits as its factorization.

125011132243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827888444.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 125011132243 its reverse (342231110521), we get a palindrome (467242242764).

The spelling of 125011132243 in words is "one hundred twenty-five billion, eleven million, one hundred thirty-two thousand, two hundred forty-three".