32281481213 has 4 divisors (see below), whose sum is σ = 33980506560. Its totient is φ = 30582455868.

The previous prime is 32281481189. The next prime is 32281481227. The reversal of 32281481213 is 31218418223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31218418223 = 21727 ⋅1436849.

It is a cyclic number.

It is not a de Polignac number, because 32281481213 - 2¹⁴ = 32281464829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32281481233) 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, 849512645 + ... + 849512682.

It is an arithmetic number, because the mean of its divisors is an integer number (8495126640).

Almost surely, 2^32281481213 is an apocalyptic number.

It is an amenable number.

32281481213 is a deficient number, since it is larger than the sum of its proper divisors (1699025347).

32281481213 is a wasteful number, since it uses less digits than its factorization.

32281481213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699025346.

The product of its digits is 18432, while the sum is 35.

Adding to 32281481213 its reverse (31218418223), we get a palindrome (63499899436).

The spelling of 32281481213 in words is "thirty-two billion, two hundred eighty-one million, four hundred eighty-one thousand, two hundred thirteen".