125011711231 has 16 divisors (see below), whose sum is σ = 144586915200. Its totient is φ = 106890991200.

The previous prime is 125011711229. The next prime is 125011711247. The reversal of 125011711231 is 132117110521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125011711231 - 2¹ = 125011711229 is a prime.

It is a super-2 number, since 2×125011711231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125011711196 and 125011711205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125011711631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2122540 + ... + 2180641.

It is an arithmetic number, because the mean of its divisors is an integer number (9036682200).

Almost surely, 2^125011711231 is an apocalyptic number.

125011711231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125011711231 is a deficient number, since it is larger than the sum of its proper divisors (19575203969).

125011711231 is a wasteful number, since it uses less digits than its factorization.

125011711231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303350.

The product of its (nonzero) digits is 420, while the sum is 25.

Adding to 125011711231 its reverse (132117110521), we get a palindrome (257128821752).

The spelling of 125011711231 in words is "one hundred twenty-five billion, eleven million, seven hundred eleven thousand, two hundred thirty-one".