20121321123032 has 16 divisors (see below), whose sum is σ = 37945555010640. Its totient is φ = 10002506453536.

The previous prime is 20121321122993. The next prime is 20121321123049. The reversal of 20121321123032 is 23032112312102.

It is a junction number, because it is equal to n+sod(n) for n = 20121321122989 and 20121321123007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7269262028 + ... + 7269264795.

It is an arithmetic number, because the mean of its divisors is an integer number (2371597188165).

Almost surely, 2^{20121321123032} is an apocalyptic number.

It is an amenable number.

20121321123032 is a deficient number, since it is larger than the sum of its proper divisors (17824233887608).

20121321123032 is a wasteful number, since it uses less digits than its factorization.

20121321123032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14538527002 (or 14538526998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20121321123032 its reverse (23032112312102), we get a palindrome (43153433435134).

The spelling of 20121321123032 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, thirty-two".