231100452000 has 960 divisors, whose sum is σ = 941380247808. Its totient is φ = 55054080000.

The previous prime is 231100451941. The next prime is 231100452013. The reversal of 231100452000 is 254001132.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 159 ways as a sum of consecutive naturals, for example, 217403469 + ... + 217404531.

Almost surely, 2^231100452000 is an apocalyptic number.

231100452000 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 231100452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470690123904).

231100452000 is an abundant number, since it is smaller than the sum of its proper divisors (710279795808).

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

231100452000 is a wasteful number, since it uses less digits than its factorization.

231100452000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 231100452000 its reverse (254001132), we get a palindrome (231354453132).

The spelling of 231100452000 in words is "two hundred thirty-one billion, one hundred million, four hundred fifty-two thousand".