1002323421 has 48 divisors (see below), whose sum is σ = 1626685632. Its totient is φ = 589478400.

The previous prime is 1002323419. The next prime is 1002323423. The reversal of 1002323421 is 1243232001.

1002323421 is a `hidden beast` number, since 10 + 0 + 232 + 3 + 421 = 666.

It is an interprime number because it is at equal distance from previous prime (1002323419) and next prime (1002323423).

It is not a de Polignac number, because 1002323421 - 2¹ = 1002323419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002323394 and 1002323403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002323423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 735781 + ... + 737141.

It is an arithmetic number, because the mean of its divisors is an integer number (33889284).

Almost surely, 2^1002323421 is an apocalyptic number.

1002323421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002323421 is a deficient number, since it is larger than the sum of its proper divisors (624362211).

1002323421 is a wasteful number, since it uses less digits than its factorization.

1002323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594 (or 1591 counting only the distinct ones).

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

The square root of 1002323421 is about 31659.4917994588. The cubic root of 1002323421 is about 1000.7738746302.

Adding to 1002323421 its reverse (1243232001), we get a palindrome (2245555422).

It can be divided in two parts, 1002 and 323421, that added together give a palindrome (324423).

The spelling of 1002323421 in words is "one billion, two million, three hundred twenty-three thousand, four hundred twenty-one".