20101010880 has 56 divisors (see below), whose sum is σ = 63820712592. Its totient is φ = 5360269312.

The previous prime is 20101010873. The next prime is 20101010927. The reversal of 20101010880 is 8801010102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10468317 + ... + 10470236.

It is an arithmetic number, because the mean of its divisors is an integer number (1139655582).

Almost surely, 2^20101010880 is an apocalyptic number.

20101010880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101010880 is an abundant number, since it is smaller than the sum of its proper divisors (43719701712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20101010880 is a wasteful number, since it uses less digits than its factorization.

20101010880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20938573 (or 20938563 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 20101010880 its reverse (8801010102), we get a palindrome (28902020982).

The spelling of 20101010880 in words is "twenty billion, one hundred one million, ten thousand, eight hundred eighty".