125042550331 has 4 divisors (see below), whose sum is σ = 125043571000. Its totient is φ = 125041529664.

The previous prime is 125042550323. The next prime is 125042550383. The reversal of 125042550331 is 133055240521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 125042550331 - 2³ = 125042550323 is a prime.

It is a super-2 number, since 2×125042550331² (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 = 125042550293 and 125042550302.

It is not an unprimeable number, because it can be changed into a prime (125042550301) 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, 296781 + ... + 581518.

It is an arithmetic number, because the mean of its divisors is an integer number (31260892750).

Almost surely, 2^125042550331 is an apocalyptic number.

125042550331 is a deficient number, since it is larger than the sum of its proper divisors (1020669).

125042550331 is an equidigital number, since it uses as much as digits as its factorization.

125042550331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020668.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 125042550331 its reverse (133055240521), we get a palindrome (258097790852).

The spelling of 125042550331 in words is "one hundred twenty-five billion, forty-two million, five hundred fifty thousand, three hundred thirty-one".