1321024023 has 24 divisors (see below), whose sum is σ = 2090584080. Its totient is φ = 797170560.

The previous prime is 1321024009. The next prime is 1321024031. The reversal of 1321024023 is 3204201231.

It is not a de Polignac number, because 1321024023 - 2¹⁶ = 1320958487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321023987 and 1321024005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321024093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5568 + ... + 51701.

It is an arithmetic number, because the mean of its divisors is an integer number (87107670).

Almost surely, 2^1321024023 is an apocalyptic number.

1321024023 is a deficient number, since it is larger than the sum of its proper divisors (769560057).

1321024023 is a wasteful number, since it uses less digits than its factorization.

1321024023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57519 (or 57516 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1321024023 is about 36345.8941697683. The cubic root of 1321024023 is about 1097.2449022183.

Adding to 1321024023 its reverse (3204201231), we get a palindrome (4525225254).

The spelling of 1321024023 in words is "one billion, three hundred twenty-one million, twenty-four thousand, twenty-three".