213123123032 has 128 divisors (see below), whose sum is σ = 449366097600. Its totient is φ = 94264934400.

The previous prime is 213123123019. The next prime is 213123123067. The reversal of 213123123032 is 230321321312.

It is a junction number, because it is equal to n+sod(n) for n = 213123122989 and 213123123007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91038182 + ... + 91040522.

Almost surely, 2^213123123032 is an apocalyptic number.

It is an amenable number.

213123123032 is an abundant number, since it is smaller than the sum of its proper divisors (236242974568).

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

213123123032 is a wasteful number, since it uses less digits than its factorization.

213123123032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997 (or 2993 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213123123032 its reverse (230321321312), we get a palindrome (443444444344).

The spelling of 213123123032 in words is "two hundred thirteen billion, one hundred twenty-three million, one hundred twenty-three thousand, thirty-two".