125055040231 has 4 divisors (see below), whose sum is σ = 136423680264. Its totient is φ = 113686400200.

The previous prime is 125055040211. The next prime is 125055040241. The reversal of 125055040231 is 132040550521.

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-125055040231 is a prime.

It is a super-2 number, since 2×125055040231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125055040231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125055040211) 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, 5684320000 + ... + 5684320021.

It is an arithmetic number, because the mean of its divisors is an integer number (34105920066).

Almost surely, 2^125055040231 is an apocalyptic number.

125055040231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125055040231 is a deficient number, since it is larger than the sum of its proper divisors (11368640033).

125055040231 is a wasteful number, since it uses less digits than its factorization.

125055040231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11368640032.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 125055040231 its reverse (132040550521), we get a palindrome (257095590752).

The spelling of 125055040231 in words is "one hundred twenty-five billion, fifty-five million, forty thousand, two hundred thirty-one".