231430544000 has 128 divisors (see below), whose sum is σ = 580677411600. Its totient is φ = 91722240000.

The previous prime is 231430543997. The next prime is 231430544027. The reversal of 231430544000 is 445034132.

231430544000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 33917852224 + 197512691776 = 184168^2 + 444424^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×231430544000² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1677650 + ... + 1810350.

Almost surely, 2^231430544000 is an apocalyptic number.

231430544000 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 231430544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290338705800).

231430544000 is an abundant number, since it is smaller than the sum of its proper divisors (349246867600).

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

231430544000 is a wasteful number, since it uses less digits than its factorization.

231430544000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132839 (or 132817 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 231430544000 its reverse (445034132), we get a palindrome (231875578132).

The spelling of 231430544000 in words is "two hundred thirty-one billion, four hundred thirty million, five hundred forty-four thousand".