12131231311030 has 128 divisors (see below), whose sum is σ = 25924611686400. Its totient is φ = 4048717499904.

The previous prime is 12131231310977. The next prime is 12131231311039. The reversal of 12131231311030 is 3011313213121.

It is a junction number, because it is equal to n+sod(n) for n = 12131231310992 and 12131231311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131231311039) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2587011 + ... + 5563729.

It is an arithmetic number, because the mean of its divisors is an integer number (202536028800).

Almost surely, 2^{12131231311030} is an apocalyptic number.

12131231311030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131231311030 is an abundant number, since it is smaller than the sum of its proper divisors (13793380375370).

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

12131231311030 is a wasteful number, since it uses less digits than its factorization.

12131231311030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976838.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 12131231311030 its reverse (3011313213121), we get a palindrome (15142544524151).

The spelling of 12131231311030 in words is "twelve trillion, one hundred thirty-one billion, two hundred thirty-one million, three hundred eleven thousand, thirty".