125503133223 has 16 divisors (see below), whose sum is σ = 180485635680. Its totient is φ = 77114408064.

The previous prime is 125503133213. The next prime is 125503133297. The reversal of 125503133223 is 322331305521.

It is a happy number.

It is not a de Polignac number, because 125503133223 - 2⁴ = 125503133207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125503133213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2438568 + ... + 2489501.

It is an arithmetic number, because the mean of its divisors is an integer number (11280352230).

Almost surely, 2^125503133223 is an apocalyptic number.

125503133223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125503133223 is a deficient number, since it is larger than the sum of its proper divisors (54982502457).

125503133223 is a wasteful number, since it uses less digits than its factorization.

125503133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928738.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 125503133223 its reverse (322331305521), we get a palindrome (447834438744).

The spelling of 125503133223 in words is "one hundred twenty-five billion, five hundred three million, one hundred thirty-three thousand, two hundred twenty-three".