231133011300 has 144 divisors (see below), whose sum is σ = 743729481600. Its totient is φ = 61579094400.

The previous prime is 231133011229. The next prime is 231133011301. The reversal of 231133011300 is 3110331132.

It is a happy number.

231133011300 is a `hidden beast` number, since 2 + 31 + 1 + 330 + 1 + 1 + 300 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (231133011301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2955705 + ... + 3032895.

Almost surely, 2^231133011300 is an apocalyptic number.

231133011300 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 231133011300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371864740800).

231133011300 is an abundant number, since it is smaller than the sum of its proper divisors (512596470300).

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

231133011300 is a wasteful number, since it uses less digits than its factorization.

231133011300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78323 (or 78310 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 231133011300 its reverse (3110331132), we get a palindrome (234243342432).

The spelling of 231133011300 in words is "two hundred thirty-one billion, one hundred thirty-three million, eleven thousand, three hundred".