12311202030 has 32 divisors (see below), whose sum is σ = 30345452064. Its totient is φ = 3194257536.

The previous prime is 12311202023. The next prime is 12311202031. The reversal of 12311202030 is 3020211321.

It is a super-2 number, since 2×12311202030² (a number of 21 digits) 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 (12311202031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5544477 + ... + 5546696.

It is an arithmetic number, because the mean of its divisors is an integer number (948295377).

Almost surely, 2^12311202030 is an apocalyptic number.

12311202030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311202030 is an abundant number, since it is smaller than the sum of its proper divisors (18034250034).

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

12311202030 is a wasteful number, since it uses less digits than its factorization.

12311202030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091220.

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

Adding to 12311202030 its reverse (3020211321), we get a palindrome (15331413351).

The spelling of 12311202030 in words is "twelve billion, three hundred eleven million, two hundred two thousand, thirty".