231001231132 has 12 divisors (see below), whose sum is σ = 462002462320. Its totient is φ = 99000527616.

The previous prime is 231001231103. The next prime is 231001231133. The reversal of 231001231132 is 231132100132.

231001231132 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231001231133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4125021957 + ... + 4125022012.

Almost surely, 2^231001231132 is an apocalyptic number.

It is an amenable number.

231001231132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231001231132 is a wasteful number, since it uses less digits than its factorization.

231001231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8250043980 (or 8250043978 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231001231132 its reverse (231132100132), we get a palindrome (462133331264).

The spelling of 231001231132 in words is "two hundred thirty-one billion, one million, two hundred thirty-one thousand, one hundred thirty-two".