20713826011 has 4 divisors (see below), whose sum is σ = 21804027400. Its totient is φ = 19623624624.

The previous prime is 20713825999. The next prime is 20713826033. The reversal of 20713826011 is 11062831702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20713826011 - 2⁹ = 20713825499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20713826311) 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, 545100666 + ... + 545100703.

It is an arithmetic number, because the mean of its divisors is an integer number (5451006850).

Almost surely, 2^20713826011 is an apocalyptic number.

20713826011 is a deficient number, since it is larger than the sum of its proper divisors (1090201389).

20713826011 is a wasteful number, since it uses less digits than its factorization.

20713826011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090201388.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 20713826011 in words is "twenty billion, seven hundred thirteen million, eight hundred twenty-six thousand, eleven".