1232720103 has 8 divisors (see below), whose sum is σ = 1644053616. Its totient is φ = 821600000.

The previous prime is 1232720017. The next prime is 1232720107. The reversal of 1232720103 is 3010272321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232720103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1232720103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232720107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39348 + ... + 63353.

It is an arithmetic number, because the mean of its divisors is an integer number (205506702).

Almost surely, 2^1232720103 is an apocalyptic number.

1232720103 is a deficient number, since it is larger than the sum of its proper divisors (411333513).

1232720103 is a wasteful number, since it uses less digits than its factorization.

1232720103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106705.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1232720103 is about 35110.1139701938. The cubic root of 1232720103 is about 1072.2305067801.

Adding to 1232720103 its reverse (3010272321), we get a palindrome (4242992424).

The spelling of 1232720103 in words is "one billion, two hundred thirty-two million, seven hundred twenty thousand, one hundred three".