2311201230 has 256 divisors, whose sum is σ = 6688604160. Its totient is φ = 505612800.

The previous prime is 2311201219. The next prime is 2311201237. The reversal of 2311201230 is 321021132.

It is a super-2 number, since 2×2311201230² = 10683302251107025800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311201237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12100435 + ... + 12100625.

It is an arithmetic number, because the mean of its divisors is an integer number (26127360).

Almost surely, 2^2311201230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2311201230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3344302080).

2311201230 is an abundant number, since it is smaller than the sum of its proper divisors (4377402930).

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

2311201230 is a wasteful number, since it uses less digits than its factorization.

2311201230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2311201230 is about 48074.9542901499. The cubic root of 2311201230 is about 1322.1455064776.

Adding to 2311201230 its reverse (321021132), we get a palindrome (2632222362).

The spelling of 2311201230 in words is "two billion, three hundred eleven million, two hundred one thousand, two hundred thirty".