1023424521 has 16 divisors (see below), whose sum is σ = 1562179584. Its totient is φ = 583810704.

The previous prime is 1023424513. The next prime is 1023424543. The reversal of 1023424521 is 1254243201.

It is not a de Polignac number, because 1023424521 - 2³ = 1023424513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023424491 and 1023424500.

It is not an unprimeable number, because it can be changed into a prime (1023424621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29185 + ... + 53838.

It is an arithmetic number, because the mean of its divisors is an integer number (97636224).

Almost surely, 2^1023424521 is an apocalyptic number.

It is an amenable number.

1023424521 is a deficient number, since it is larger than the sum of its proper divisors (538755063).

1023424521 is an equidigital number, since it uses as much as digits as its factorization.

1023424521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83620.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1023424521 is about 31991.0068769334. The cubic root of 1023424521 is about 1007.7479873186.

Adding to 1023424521 its reverse (1254243201), we get a palindrome (2277667722).

The spelling of 1023424521 in words is "one billion, twenty-three million, four hundred twenty-four thousand, five hundred twenty-one".