2331135420 has 96 divisors (see below), whose sum is σ = 6934939200. Its totient is φ = 583962624.

The previous prime is 2331135407. The next prime is 2331135431. The reversal of 2331135420 is 245311332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46276 + ... + 82484.

It is an arithmetic number, because the mean of its divisors is an integer number (72238950).

Almost surely, 2^2331135420 is an apocalyptic number.

2331135420 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 2331135420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3467469600).

2331135420 is an abundant number, since it is smaller than the sum of its proper divisors (4603803780).

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

2331135420 is a wasteful number, since it uses less digits than its factorization.

2331135420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36287 (or 36285 counting only the distinct ones).

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

The square root of 2331135420 is about 48281.8332294871. The cubic root of 2331135420 is about 1325.9358135680.

Adding to 2331135420 its reverse (245311332), we get a palindrome (2576446752).

The spelling of 2331135420 in words is "two billion, three hundred thirty-one million, one hundred thirty-five thousand, four hundred twenty".