5311243320 has 96 divisors (see below), whose sum is σ = 16338082320. Its totient is φ = 1380456960.

The previous prime is 5311243313. The next prime is 5311243339. The reversal of 5311243320 is 233421135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5111361 + ... + 5112399.

Almost surely, 2^5311243320 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 5311243320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8169041160).

5311243320 is an abundant number, since it is smaller than the sum of its proper divisors (11026839000).

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

5311243320 is a wasteful number, since it uses less digits than its factorization.

5311243320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 5311243320 is about 72878.2774220138. The cubic root of 5311243320 is about 1744.7454159621.

Adding to 5311243320 its reverse (233421135), we get a palindrome (5544664455).

The spelling of 5311243320 in words is "five billion, three hundred eleven million, two hundred forty-three thousand, three hundred twenty".