32131021213013 has 4 divisors (see below), whose sum is σ = 32134214844108. Its totient is φ = 32127827581920.

The previous prime is 32131021212949. The next prime is 32131021213099. The reversal of 32131021213013 is 31031212013123.

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 19876554805969 + 12254466407044 = 4458313^2 + 3500638^2 .

It is a cyclic number.

It is not a de Polignac number, because 32131021213013 - 2⁶ = 32131021212949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32131021213013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131021219013) 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, 1596800456 + ... + 1596820577.

It is an arithmetic number, because the mean of its divisors is an integer number (8033553711027).

Almost surely, 2^{32131021213013} is an apocalyptic number.

It is an amenable number.

32131021213013 is a deficient number, since it is larger than the sum of its proper divisors (3193631095).

32131021213013 is a wasteful number, since it uses less digits than its factorization.

32131021213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193631094.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 32131021213013 its reverse (31031212013123), we get a palindrome (63162233226136).

The spelling of 32131021213013 in words is "thirty-two trillion, one hundred thirty-one billion, twenty-one million, two hundred thirteen thousand, thirteen".