1032120403 has 4 divisors (see below), whose sum is σ = 1032763480. Its totient is φ = 1031477328.

The previous prime is 1032120391. The next prime is 1032120409. The reversal of 1032120403 is 3040212301.

It is a happy number.

1032120403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1032120403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1032120409) 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, 319125 + ... + 322342.

It is an arithmetic number, because the mean of its divisors is an integer number (258190870).

Almost surely, 2^1032120403 is an apocalyptic number.

1032120403 is a deficient number, since it is larger than the sum of its proper divisors (643077).

1032120403 is an equidigital number, since it uses as much as digits as its factorization.

1032120403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643076.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1032120403 is about 32126.6307446019. The cubic root of 1032120403 is about 1010.5941682487.

Adding to 1032120403 its reverse (3040212301), we get a palindrome (4072332704).

The spelling of 1032120403 in words is "one billion, thirty-two million, one hundred twenty thousand, four hundred three".