125345145231 has 12 divisors (see below), whose sum is σ = 181912177720. Its totient is φ = 83167393680.

The previous prime is 125345145209. The next prime is 125345145239. The reversal of 125345145231 is 132541543521.

125345145231 is a `hidden beast` number, since 1 + 2 + 534 + 51 + 45 + 2 + 31 = 666.

It is not a de Polignac number, because 125345145231 - 2¹³ = 125345137039 is a prime.

It is a super-2 number, since 2×125345145231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125345145239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33001036 + ... + 33004833.

Almost surely, 2^125345145231 is an apocalyptic number.

125345145231 is a deficient number, since it is larger than the sum of its proper divisors (56567032489).

125345145231 is a wasteful number, since it uses less digits than its factorization.

125345145231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66006086 (or 66006083 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 125345145231 its reverse (132541543521), we get a palindrome (257886688752).

The spelling of 125345145231 in words is "one hundred twenty-five billion, three hundred forty-five million, one hundred forty-five thousand, two hundred thirty-one".