20152053111 has 8 divisors (see below), whose sum is σ = 26930611840. Its totient is φ = 13404098232.

The previous prime is 20152053109. The next prime is 20152053121. The reversal of 20152053111 is 11135025102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20152053111 - 2¹ = 20152053109 is a prime.

It is a super-2 number, since 2×20152053111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152053121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7649425 + ... + 7652058.

It is an arithmetic number, because the mean of its divisors is an integer number (3366326480).

Almost surely, 2^20152053111 is an apocalyptic number.

20152053111 is a deficient number, since it is larger than the sum of its proper divisors (6778558729).

20152053111 is a wasteful number, since it uses less digits than its factorization.

20152053111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15301925.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 20152053111 its reverse (11135025102), we get a palindrome (31287078213).

The spelling of 20152053111 in words is "twenty billion, one hundred fifty-two million, fifty-three thousand, one hundred eleven".