1021313424 has 20 divisors (see below), whose sum is σ = 2638393136. Its totient is φ = 340437792.

The previous prime is 1021313407. The next prime is 1021313429. The reversal of 1021313424 is 4243131201.

It is a super-2 number, since 2×1021313424² = 2086162220085207552, 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 1021313424.

It is not an unprimeable number, because it can be changed into a prime (1021313429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10638634 + ... + 10638729.

Almost surely, 2^1021313424 is an apocalyptic number.

It is an amenable number.

1021313424 is an abundant number, since it is smaller than the sum of its proper divisors (1617079712).

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

1021313424 is a wasteful number, since it uses less digits than its factorization.

1021313424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21277374 (or 21277368 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1021313424 is about 31957.9946805177. The cubic root of 1021313424 is about 1007.0545903919.

Adding to 1021313424 its reverse (4243131201), we get a palindrome (5264444625).

The spelling of 1021313424 in words is "one billion, twenty-one million, three hundred thirteen thousand, four hundred twenty-four".