231441304420 has 48 divisors (see below), whose sum is σ = 488482557696. Its totient is φ = 92109024000.

The previous prime is 231441304397. The next prime is 231441304427. The reversal of 231441304420 is 24403144132.

It is a super-2 number, since 2×231441304420² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231441304427) 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, 18017200 + ... + 18030040.

It is an arithmetic number, because the mean of its divisors is an integer number (10176719952).

Almost surely, 2^231441304420 is an apocalyptic number.

231441304420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231441304420 is an abundant number, since it is smaller than the sum of its proper divisors (257041253276).

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

231441304420 is a wasteful number, since it uses less digits than its factorization.

231441304420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17332 (or 17330 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 231441304420 its reverse (24403144132), we get a palindrome (255844448552).

The spelling of 231441304420 in words is "two hundred thirty-one billion, four hundred forty-one million, three hundred four thousand, four hundred twenty".