2321002420 has 96 divisors (see below), whose sum is σ = 5463150336. Its totient is φ = 821145600.

The previous prime is 2321002391. The next prime is 2321002451. The reversal of 2321002420 is 242001232.

It is a junction number, because it is equal to n+sod(n) for n = 2321002394 and 2321002403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1300849 + ... + 1302631.

It is an arithmetic number, because the mean of its divisors is an integer number (56907816).

Almost surely, 2^2321002420 is an apocalyptic number.

2321002420 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 2321002420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2731575168).

2321002420 is an abundant number, since it is smaller than the sum of its proper divisors (3142147916).

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

2321002420 is a wasteful number, since it uses less digits than its factorization.

2321002420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961 (or 1959 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2321002420 is about 48176.7829976224. The cubic root of 2321002420 is about 1324.0118266393.

Adding to 2321002420 its reverse (242001232), we get a palindrome (2563003652).

The spelling of 2321002420 in words is "two billion, three hundred twenty-one million, two thousand, four hundred twenty".