231221033110132 has 48 divisors (see below), whose sum is σ = 460718290751040. Its totient is φ = 100655317032192.

The previous prime is 231221033110079. The next prime is 231221033110181. The reversal of 231221033110132 is 231011330122132.

It is a super-3 number, since 3×231221033110132³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231221033110097 and 231221033110106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515258953 + ... + 515707504.

It is an arithmetic number, because the mean of its divisors is an integer number (9598297723980).

Almost surely, 2^{231221033110132} is an apocalyptic number.

It is an amenable number.

231221033110132 is a deficient number, since it is larger than the sum of its proper divisors (229497257640908).

231221033110132 is a wasteful number, since it uses less digits than its factorization.

231221033110132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030966720 (or 1030966718 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 231221033110132 its reverse (231011330122132), we get a palindrome (462232363232264).

The spelling of 231221033110132 in words is "two hundred thirty-one trillion, two hundred twenty-one billion, thirty-three million, one hundred ten thousand, one hundred thirty-two".