20131101210 has 128 divisors (see below), whose sum is σ = 55118278656. Its totient is φ = 4657917440.

The previous prime is 20131101119. The next prime is 20131101239. The reversal of 20131101210 is 1210113102.

It is a super-2 number, since 2×20131101210² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3815134 + ... + 3820406.

It is an arithmetic number, because the mean of its divisors is an integer number (430611552).

Almost surely, 2^20131101210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20131101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27559139328).

20131101210 is an abundant number, since it is smaller than the sum of its proper divisors (34987177446).

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

20131101210 is a wasteful number, since it uses less digits than its factorization.

20131101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820.

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

Adding to 20131101210 its reverse (1210113102), we get a palindrome (21341214312).

The spelling of 20131101210 in words is "twenty billion, one hundred thirty-one million, one hundred one thousand, two hundred ten".