20011213110 has 32 divisors (see below), whose sum is σ = 54887899392. Its totient is φ = 4573991520.

The previous prime is 20011213091. The next prime is 20011213133. The reversal of 20011213110 is 1131211002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47645536 + ... + 47645955.

It is an arithmetic number, because the mean of its divisors is an integer number (1715246856).

Almost surely, 2^20011213110 is an apocalyptic number.

20011213110 is an abundant number, since it is smaller than the sum of its proper divisors (34876686282).

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

20011213110 is a wasteful number, since it uses less digits than its factorization.

20011213110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95291508.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20011213110 its reverse (1131211002), we get a palindrome (21142424112).

The spelling of 20011213110 in words is "twenty billion, eleven million, two hundred thirteen thousand, one hundred ten".