1045403123 has 8 divisors (see below), whose sum is σ = 1119076800. Its totient is φ = 973594728.

The previous prime is 1045403101. The next prime is 1045403131. The reversal of 1045403123 is 3213045401.

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

It is a cyclic number.

It is not a de Polignac number, because 1045403123 - 2⁶ = 1045403059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045400123) 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, 465161 + ... + 467402.

It is an arithmetic number, because the mean of its divisors is an integer number (139884600).

Almost surely, 2^1045403123 is an apocalyptic number.

1045403123 is a deficient number, since it is larger than the sum of its proper divisors (73673677).

1045403123 is an equidigital number, since it uses as much as digits as its factorization.

1045403123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932641.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1045403123 is about 32332.6943356102. The cubic root of 1045403123 is about 1014.9109333220.

Adding to 1045403123 its reverse (3213045401), we get a palindrome (4258448524).

The spelling of 1045403123 in words is "one billion, forty-five million, four hundred three thousand, one hundred twenty-three".