20111702013 has 48 divisors (see below), whose sum is σ = 31838212224. Its totient is φ = 12158052480.

The previous prime is 20111701969. The next prime is 20111702071. The reversal of 20111702013 is 31020711102.

It is a happy number.

It is not a de Polignac number, because 20111702013 - 2⁹ = 20111701501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111702713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8299120 + ... + 8301542.

It is an arithmetic number, because the mean of its divisors is an integer number (663296088).

Almost surely, 2^20111702013 is an apocalyptic number.

It is an amenable number.

20111702013 is a deficient number, since it is larger than the sum of its proper divisors (11726510211).

20111702013 is a wasteful number, since it uses less digits than its factorization.

20111702013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666 (or 3663 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The spelling of 20111702013 in words is "twenty billion, one hundred eleven million, seven hundred two thousand, thirteen".