32120022100013 has 4 divisors (see below), whose sum is σ = 32175689383260. Its totient is φ = 32064354816768.

The previous prime is 32120022100003. The next prime is 32120022100021. The reversal of 32120022100013 is 31000122002123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19312878308164 + 12807143791849 = 4394642^2 + 3578707^2 .

It is a cyclic number.

It is not a de Polignac number, because 32120022100013 - 2⁴⁴ = 14527836055597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32120022099964 and 32120022100000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32120022100003) 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, 27833640758 + ... + 27833641911.

It is an arithmetic number, because the mean of its divisors is an integer number (8043922345815).

Almost surely, 2^{32120022100013} is an apocalyptic number.

It is an amenable number.

32120022100013 is a deficient number, since it is larger than the sum of its proper divisors (55667283247).

32120022100013 is an equidigital number, since it uses as much as digits as its factorization.

32120022100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55667283246.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 32120022100013 its reverse (31000122002123), we get a palindrome (63120144102136).

The spelling of 32120022100013 in words is "thirty-two trillion, one hundred twenty billion, twenty-two million, one hundred thousand, thirteen".