1030202421 has 4 divisors (see below), whose sum is σ = 1373603232. Its totient is φ = 686801612.

The previous prime is 1030202419. The next prime is 1030202479. The reversal of 1030202421 is 1242020301.

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.

It is a cyclic number.

It is not a de Polignac number, because 1030202421 - 2¹ = 1030202419 is a prime.

It is a super-2 number, since 2×1030202421² = 2122634056468522482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030202421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030202321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171700401 + ... + 171700406.

It is an arithmetic number, because the mean of its divisors is an integer number (343400808).

Almost surely, 2^1030202421 is an apocalyptic number.

It is an amenable number.

1030202421 is a deficient number, since it is larger than the sum of its proper divisors (343400811).

1030202421 is an equidigital number, since it uses as much as digits as its factorization.

1030202421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343400810.

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

The square root of 1030202421 is about 32096.7665193863. The cubic root of 1030202421 is about 1009.9677867712.

Adding to 1030202421 its reverse (1242020301), we get a palindrome (2272222722).

The spelling of 1030202421 in words is "one billion, thirty million, two hundred two thousand, four hundred twenty-one".