125244042403 has 12 divisors (see below), whose sum is σ = 130830761712. Its totient is φ = 119861298720.

The previous prime is 125244042401. The next prime is 125244042439. The reversal of 125244042403 is 304240442521.

It is not a de Polignac number, because 125244042403 - 2¹ = 125244042401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125244042401) 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, 666375 + ... + 833392.

It is an arithmetic number, because the mean of its divisors is an integer number (10902563476).

Almost surely, 2^125244042403 is an apocalyptic number.

125244042403 is a deficient number, since it is larger than the sum of its proper divisors (5586719309).

125244042403 is an equidigital number, since it uses as much as digits as its factorization.

125244042403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499902 (or 1499865 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 125244042403 its reverse (304240442521), we get a palindrome (429484484924).

The spelling of 125244042403 in words is "one hundred twenty-five billion, two hundred forty-four million, forty-two thousand, four hundred three".