1024321421 has 4 divisors (see below), whose sum is σ = 1032387072. Its totient is φ = 1016255772.

The previous prime is 1024321289. The next prime is 1024321423. The reversal of 1024321421 is 1241234201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1241234201 = 11587 ⋅107123.

It is a cyclic number.

It is not a de Polignac number, because 1024321421 - 2²² = 1020127117 is a prime.

It is a super-3 number, since 3×1024321421³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1024321393 and 1024321402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024321423) 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, 4032635 + ... + 4032888.

It is an arithmetic number, because the mean of its divisors is an integer number (258096768).

Almost surely, 2^1024321421 is an apocalyptic number.

It is an amenable number.

1024321421 is a deficient number, since it is larger than the sum of its proper divisors (8065651).

1024321421 is an equidigital number, since it uses as much as digits as its factorization.

1024321421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8065650.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1024321421 is about 32005.0218090849. The cubic root of 1024321421 is about 1008.0422885409.

Adding to 1024321421 its reverse (1241234201), we get a palindrome (2265555622).

The spelling of 1024321421 in words is "one billion, twenty-four million, three hundred twenty-one thousand, four hundred twenty-one".