20131432013 has 16 divisors (see below), whose sum is σ = 25105199616. Its totient is φ = 15682910640.

The previous prime is 20131432003. The next prime is 20131432031. The reversal of 20131432013 is 31023413102.

It is a cyclic number.

It is not a de Polignac number, because 20131432013 - 2⁸ = 20131431757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131432003) 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, 299270 + ... + 360312.

It is an arithmetic number, because the mean of its divisors is an integer number (1569074976).

Almost surely, 2^20131432013 is an apocalyptic number.

It is an amenable number.

20131432013 is a deficient number, since it is larger than the sum of its proper divisors (4973767603).

20131432013 is a wasteful number, since it uses less digits than its factorization.

20131432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65344.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20131432013 its reverse (31023413102), we get a palindrome (51154845115).

The spelling of 20131432013 in words is "twenty billion, one hundred thirty-one million, four hundred thirty-two thousand, thirteen".