1020232523 has 4 divisors (see below), whose sum is σ = 1020296928. Its totient is φ = 1020168120.

The previous prime is 1020232513. The next prime is 1020232567. The reversal of 1020232523 is 3252320201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020232523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020232495 and 1020232504.

It is not an unprimeable number, because it can be changed into a prime (1020232513) 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 3 ways as a sum of consecutive naturals, for example, 9965 + ... + 46257.

It is an arithmetic number, because the mean of its divisors is an integer number (255074232).

Almost surely, 2^1020232523 is an apocalyptic number.

1020232523 is a deficient number, since it is larger than the sum of its proper divisors (64405).

1020232523 is an equidigital number, since it uses as much as digits as its factorization.

1020232523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64404.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1020232523 is about 31941.0789266737. The cubic root of 1020232523 is about 1006.6991949028.

Adding to 1020232523 its reverse (3252320201), we get a palindrome (4272552724).

The spelling of 1020232523 in words is "one billion, twenty million, two hundred thirty-two thousand, five hundred twenty-three".