1021421324 has 48 divisors (see below), whose sum is σ = 2231013120. Its totient is φ = 397517760.

The previous prime is 1021421309. The next prime is 1021421333. The reversal of 1021421324 is 4231241201.

1021421324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1021421324² = 2086603042243825952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021421296 and 1021421305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513059 + ... + 515045.

It is an arithmetic number, because the mean of its divisors is an integer number (46479440).

Almost surely, 2^1021421324 is an apocalyptic number.

1021421324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1021421324 is an abundant number, since it is smaller than the sum of its proper divisors (1209591796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021421324 is a wasteful number, since it uses less digits than its factorization.

1021421324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678 (or 3676 counting only the distinct ones).

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

The square root of 1021421324 is about 31959.6827894145. The cubic root of 1021421324 is about 1007.0900536693.

Adding to 1021421324 its reverse (4231241201), we get a palindrome (5252662525).

The spelling of 1021421324 in words is "one billion, twenty-one million, four hundred twenty-one thousand, three hundred twenty-four".