1021113344 has 44 divisors (see below), whose sum is σ = 2046082944. Its totient is φ = 509343744.

The previous prime is 1021113341. The next prime is 1021113349. The reversal of 1021113344 is 4433111201.

It is a super-2 number, since 2×1021113344² = 2085344922589724672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021113341) 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, 559217 + ... + 561039.

Almost surely, 2^1021113344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021113344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023041472).

1021113344 is an abundant number, since it is smaller than the sum of its proper divisors (1024969600).

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

1021113344 is an equidigital number, since it uses as much as digits as its factorization.

1021113344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 2372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1021113344 is about 31954.8641680731. The cubic root of 1021113344 is about 1006.9888238874.

Adding to 1021113344 its reverse (4433111201), we get a palindrome (5454224545).

The spelling of 1021113344 in words is "one billion, twenty-one million, one hundred thirteen thousand, three hundred forty-four".