231320303412 has 96 divisors (see below), whose sum is σ = 596382321024. Its totient is φ = 69199872000.

The previous prime is 231320303411. The next prime is 231320303413. The reversal of 231320303412 is 214303023132.

It is an interprime number because it is at equal distance from previous prime (231320303411) and next prime (231320303413).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320303411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5111878 + ... + 5156930.

It is an arithmetic number, because the mean of its divisors is an integer number (6212315844).

Almost surely, 2^231320303412 is an apocalyptic number.

231320303412 is a gapful number since it is divisible by the number (22) 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 231320303412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298191160512).

231320303412 is an abundant number, since it is smaller than the sum of its proper divisors (365062017612).

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

231320303412 is a wasteful number, since it uses less digits than its factorization.

231320303412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45569 (or 45567 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231320303412 its reverse (214303023132), we get a palindrome (445623326544).

The spelling of 231320303412 in words is "two hundred thirty-one billion, three hundred twenty million, three hundred three thousand, four hundred twelve".