231001231104 has 288 divisors, whose sum is σ = 826624995840. Its totient is φ = 62117756928.

The previous prime is 231001231103. The next prime is 231001231133. The reversal of 231001231104 is 401132100132.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231001231103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682107 + ... + 962949.

It is an arithmetic number, because the mean of its divisors is an integer number (2870225680).

Almost surely, 2^231001231104 is an apocalyptic number.

231001231104 is a gapful number since it is divisible by the number (24) 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 231001231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413312497920).

231001231104 is an abundant number, since it is smaller than the sum of its proper divisors (595623764736).

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

231001231104 is a wasteful number, since it uses less digits than its factorization.

231001231104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280892 (or 280872 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231001231104 its reverse (401132100132), we get a palindrome (632133331236).

The spelling of 231001231104 in words is "two hundred thirty-one billion, one million, two hundred thirty-one thousand, one hundred four".