1023403523 has 4 divisors (see below), whose sum is σ = 1023796608. Its totient is φ = 1023010440.

The previous prime is 1023403489. The next prime is 1023403543. The reversal of 1023403523 is 3253043201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3253043201 = 557 ⋅5840293.

It is a cyclic number.

It is not a de Polignac number, because 1023403523 - 2²⁰ = 1022354947 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1023403543) 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 3 ways as a sum of consecutive naturals, for example, 192611 + ... + 197852.

It is an arithmetic number, because the mean of its divisors is an integer number (255949152).

Almost surely, 2^1023403523 is an apocalyptic number.

1023403523 is a deficient number, since it is larger than the sum of its proper divisors (393085).

1023403523 is an equidigital number, since it uses as much as digits as its factorization.

1023403523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393084.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1023403523 is about 31990.6786892682. The cubic root of 1023403523 is about 1007.7410951520.

Adding to 1023403523 its reverse (3253043201), we get a palindrome (4276446724).

The spelling of 1023403523 in words is "one billion, twenty-three million, four hundred three thousand, five hundred twenty-three".