2301231211320 has 128 divisors (see below), whose sum is σ = 7087227114240. Its totient is φ = 597411701760.

The previous prime is 2301231211273. The next prime is 2301231211327. The reversal of 2301231211320 is 231121321032.

It is a super-2 number, since 2×2301231211320² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301231211327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1796859 + ... + 2798421.

It is an arithmetic number, because the mean of its divisors is an integer number (55368961830).

Almost surely, 2^{2301231211320} is an apocalyptic number.

2301231211320 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 2301231211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3543613557120).

2301231211320 is an abundant number, since it is smaller than the sum of its proper divisors (4785995902920).

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

2301231211320 is a wasteful number, since it uses less digits than its factorization.

2301231211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002085 (or 1002081 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2301231211320 its reverse (231121321032), we get a palindrome (2532352532352).

The spelling of 2301231211320 in words is "two trillion, three hundred one billion, two hundred thirty-one million, two hundred eleven thousand, three hundred twenty".