1003202421 has 24 divisors (see below), whose sum is σ = 1463414400. Its totient is φ = 610960896.

The previous prime is 1003202411. The next prime is 1003202441. The reversal of 1003202421 is 1242023001.

It is a de Polignac number, because none of the positive numbers 2^k-1003202421 is a prime.

It is a super-2 number, since 2×1003202421² = 2012830195000522482, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1003202421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003202411) 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, 38980 + ... + 59378.

It is an arithmetic number, because the mean of its divisors is an integer number (60975600).

Almost surely, 2^1003202421 is an apocalyptic number.

It is an amenable number.

1003202421 is a deficient number, since it is larger than the sum of its proper divisors (460211979).

1003202421 is a wasteful number, since it uses less digits than its factorization.

1003202421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20525 (or 20512 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1003202421 is about 31673.3708499743. The cubic root of 1003202421 is about 1001.0663361896.

Adding to 1003202421 its reverse (1242023001), we get a palindrome (2245225422).

The spelling of 1003202421 in words is "one billion, three million, two hundred two thousand, four hundred twenty-one".