101231123132 has 24 divisors (see below), whose sum is σ = 180175363200. Its totient is φ = 49752622256.

The previous prime is 101231123129. The next prime is 101231123143. The reversal of 101231123132 is 231321132101.

It is a happy number.

It is a super-2 number, since 2×101231123132² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3545369 + ... + 3573807.

It is an arithmetic number, because the mean of its divisors is an integer number (7507306800).

Almost surely, 2^101231123132 is an apocalyptic number.

It is an amenable number.

101231123132 is a deficient number, since it is larger than the sum of its proper divisors (78944240068).

101231123132 is a wasteful number, since it uses less digits than its factorization.

101231123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43585 (or 43583 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 101231123132 its reverse (231321132101), we get a palindrome (332552255233).

The spelling of 101231123132 in words is "one hundred one billion, two hundred thirty-one million, one hundred twenty-three thousand, one hundred thirty-two".