2321015340 has 144 divisors (see below), whose sum is σ = 7673363712. Its totient is φ = 522555264.

The previous prime is 2321015317. The next prime is 2321015351. The reversal of 2321015340 is 435101232.

It is a super-2 number, since 2×2321015340² = 10774224417030631200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 191089 + ... + 202871.

It is an arithmetic number, because the mean of its divisors is an integer number (53287248).

Almost surely, 2^2321015340 is an apocalyptic number.

2321015340 is a gapful number since it is divisible by the number (20) 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 2321015340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3836681856).

2321015340 is an abundant number, since it is smaller than the sum of its proper divisors (5352348372).

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

2321015340 is a wasteful number, since it uses less digits than its factorization.

2321015340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11876 (or 11867 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2321015340 is about 48176.9170869204. The cubic root of 2321015340 is about 1324.0142833653.

Adding to 2321015340 its reverse (435101232), we get a palindrome (2756116572).

The spelling of 2321015340 in words is "two billion, three hundred twenty-one million, fifteen thousand, three hundred forty".