1053213320 has 64 divisors (see below), whose sum is σ = 2499336000. Its totient is φ = 398331648.

The previous prime is 1053213283. The next prime is 1053213323. The reversal of 1053213320 is 233123501.

It is a super-2 number, since 2×1053213320² = 2218516594850844800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1053213292 and 1053213301.

It is not an unprimeable number, because it can be changed into a prime (1053213323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518066 + ... + 520094.

It is an arithmetic number, because the mean of its divisors is an integer number (39052125).

Almost surely, 2^1053213320 is an apocalyptic number.

1053213320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1053213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249668000).

1053213320 is an abundant number, since it is smaller than the sum of its proper divisors (1446122680).

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

1053213320 is a wasteful number, since it uses less digits than its factorization.

1053213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1053213320 is about 32453.2482195542. The cubic root of 1053213320 is about 1017.4321284769.

Adding to 1053213320 its reverse (233123501), we get a palindrome (1286336821).

The spelling of 1053213320 in words is "one billion, fifty-three million, two hundred thirteen thousand, three hundred twenty".