20434032132013 has 4 divisors (see below), whose sum is σ = 20434044411040. Its totient is φ = 20434019852988.

The previous prime is 20434032132001. The next prime is 20434032132037. The reversal of 20434032132013 is 31023123043402.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20434032132013 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 (20434032132043) 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, 3161943 + ... + 7132036.

It is an arithmetic number, because the mean of its divisors is an integer number (5108511102760).

Almost surely, 2^{20434032132013} is an apocalyptic number.

It is an amenable number.

20434032132013 is a deficient number, since it is larger than the sum of its proper divisors (12279027).

20434032132013 is a wasteful number, since it uses less digits than its factorization.

20434032132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12279026.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20434032132013 its reverse (31023123043402), we get a palindrome (51457155175415).

The spelling of 20434032132013 in words is "twenty trillion, four hundred thirty-four billion, thirty-two million, one hundred thirty-two thousand, thirteen".