1223125503 has 8 divisors (see below), whose sum is σ = 1726765488. Its totient is φ = 767451264.

The previous prime is 1223125471. The next prime is 1223125507. The reversal of 1223125503 is 3055213221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223125503 - 2⁵ = 1223125471 is a prime.

It is a super-4 number, since 4×1223125503⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223125507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11991376 + ... + 11991477.

It is an arithmetic number, because the mean of its divisors is an integer number (215845686).

Almost surely, 2^1223125503 is an apocalyptic number.

1223125503 is a deficient number, since it is larger than the sum of its proper divisors (503639985).

1223125503 is a wasteful number, since it uses less digits than its factorization.

1223125503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23982873.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1223125503 is about 34973.2112194462. The cubic root of 1223125503 is about 1069.4414364212.

Adding to 1223125503 its reverse (3055213221), we get a palindrome (4278338724).

The spelling of 1223125503 in words is "one billion, two hundred twenty-three million, one hundred twenty-five thousand, five hundred three".