20135771115 has 16 divisors (see below), whose sum is σ = 33328173600. Its totient is φ = 10368764672.

The previous prime is 20135771101. The next prime is 20135771119. The reversal of 20135771115 is 51117753102.

It is a cyclic number.

It is not a de Polignac number, because 20135771115 - 2¹¹ = 20135769067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20135771119) 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, 23144130 + ... + 23144999.

It is an arithmetic number, because the mean of its divisors is an integer number (2083010850).

Almost surely, 2^20135771115 is an apocalyptic number.

20135771115 is a deficient number, since it is larger than the sum of its proper divisors (13192402485).

20135771115 is a wasteful number, since it uses less digits than its factorization.

20135771115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46289166.

The product of its (nonzero) digits is 7350, while the sum is 33.

The spelling of 20135771115 in words is "twenty billion, one hundred thirty-five million, seven hundred seventy-one thousand, one hundred fifteen".