20111120130210 has 32 divisors (see below), whose sum is σ = 48272967868032. Its totient is φ = 5362267639680.

The previous prime is 20111120130209. The next prime is 20111120130217. The reversal of 20111120130210 is 1203102111102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20111120130210.

It is not an unprimeable number, because it can be changed into a prime (20111120130217) 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, 43373571 + ... + 43834790.

It is an arithmetic number, because the mean of its divisors is an integer number (1508530245876).

Almost surely, 2^{20111120130210} is an apocalyptic number.

20111120130210 is an abundant number, since it is smaller than the sum of its proper divisors (28161847737822).

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

20111120130210 is a wasteful number, since it uses less digits than its factorization.

20111120130210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87216058.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20111120130210 its reverse (1203102111102), we get a palindrome (21314222241312).

The spelling of 20111120130210 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, one hundred thirty thousand, two hundred ten".