231302111200 has 72 divisors (see below), whose sum is σ = 565876328472. Its totient is φ = 92322577920.

The previous prime is 231302111141. The next prime is 231302111221. The reversal of 231302111200 is 2111203132.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64042 + ... + 683158.

It is an arithmetic number, because the mean of its divisors is an integer number (7859393451).

Almost surely, 2^231302111200 is an apocalyptic number.

231302111200 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 231302111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282938164236).

231302111200 is an abundant number, since it is smaller than the sum of its proper divisors (334574217272).

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

231302111200 is a wasteful number, since it uses less digits than its factorization.

231302111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619604 (or 619591 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 231302111200 its reverse (2111203132), we get a palindrome (233413314332).

The spelling of 231302111200 in words is "two hundred thirty-one billion, three hundred two million, one hundred eleven thousand, two hundred".