2311231420 has 48 divisors (see below), whose sum is σ = 4993410240. Its totient is φ = 898200576.

The previous prime is 2311231411. The next prime is 2311231427. The reversal of 2311231420 is 241321132.

It is a happy number.

2311231420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311231427) 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, 98596 + ... + 119764.

It is an arithmetic number, because the mean of its divisors is an integer number (104029380).

Almost surely, 2^2311231420 is an apocalyptic number.

2311231420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311231420 is an abundant number, since it is smaller than the sum of its proper divisors (2682178820).

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

2311231420 is a wasteful number, since it uses less digits than its factorization.

2311231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21334 (or 21332 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2311231420 is about 48075.2682779826. The cubic root of 2311231420 is about 1322.1512632818.

Adding to 2311231420 its reverse (241321132), we get a palindrome (2552552552).

The spelling of 2311231420 in words is "two billion, three hundred eleven million, two hundred thirty-one thousand, four hundred twenty".