2301201131220 has 144 divisors (see below), whose sum is σ = 7019479084800. Its totient is φ = 610213824000.

The previous prime is 2301201131153. The next prime is 2301201131227. The reversal of 2301201131220 is 221311021032.

2301201131220 is a `hidden beast` number, since 2 + 301 + 20 + 11 + 312 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2301201131193 and 2301201131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301201131227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64493985 + ... + 64529655.

Almost surely, 2^{2301201131220} is an apocalyptic number.

2301201131220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2301201131220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3509739542400).

2301201131220 is an abundant number, since it is smaller than the sum of its proper divisors (4718277953580).

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

2301201131220 is a wasteful number, since it uses less digits than its factorization.

2301201131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37686 (or 37681 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2301201131220 its reverse (221311021032), we get a palindrome (2522512152252).

The spelling of 2301201131220 in words is "two trillion, three hundred one billion, two hundred one million, one hundred thirty-one thousand, two hundred twenty".