13210032021 has 16 divisors (see below), whose sum is σ = 18035905536. Its totient is φ = 8595716976.

The previous prime is 13210032007. The next prime is 13210032047. The reversal of 13210032021 is 12023001231.

It is not a de Polignac number, because 13210032021 - 2¹⁸ = 13209769877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13210032061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147586 + ... + 219548.

It is an arithmetic number, because the mean of its divisors is an integer number (1127244096).

Almost surely, 2^13210032021 is an apocalyptic number.

It is an amenable number.

13210032021 is a deficient number, since it is larger than the sum of its proper divisors (4825873515).

13210032021 is a wasteful number, since it uses less digits than its factorization.

13210032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73432.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13210032021 its reverse (12023001231), we get a palindrome (25233033252).

The spelling of 13210032021 in words is "thirteen billion, two hundred ten million, thirty-two thousand, twenty-one".