20132211155 has 32 divisors (see below), whose sum is σ = 30024141696. Its totient is φ = 12641716224.

The previous prime is 20132211107. The next prime is 20132211157. The reversal of 20132211155 is 55111223102.

It is a cyclic number.

It is not a de Polignac number, because 20132211155 - 2¹² = 20132207059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20132211155.

It is not an unprimeable number, because it can be changed into a prime (20132211157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435224 + ... + 479253.

It is an arithmetic number, because the mean of its divisors is an integer number (938254428).

Almost surely, 2^20132211155 is an apocalyptic number.

20132211155 is a deficient number, since it is larger than the sum of its proper divisors (9891930541).

20132211155 is a wasteful number, since it uses less digits than its factorization.

20132211155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914543.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 20132211155 its reverse (55111223102), we get a palindrome (75243434257).

The spelling of 20132211155 in words is "twenty billion, one hundred thirty-two million, two hundred eleven thousand, one hundred fifty-five".