12112121311030 has 48 divisors (see below), whose sum is σ = 23609473627104. Its totient is φ = 4471867146240.

The previous prime is 12112121310983. The next prime is 12112121311033. The reversal of 12112121311030 is 3011312121121.

It is a junction number, because it is equal to n+sod(n) for n = 12112121310989 and 12112121311007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112121311033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25726807 + ... + 26193373.

It is an arithmetic number, because the mean of its divisors is an integer number (491864033898).

Almost surely, 2^{12112121311030} is an apocalyptic number.

12112121311030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12112121311030 is a deficient number, since it is larger than the sum of its proper divisors (11497352316074).

12112121311030 is a wasteful number, since it uses less digits than its factorization.

12112121311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481961 (or 481948 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12112121311030 its reverse (3011312121121), we get a palindrome (15123433432151).

The spelling of 12112121311030 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-one million, three hundred eleven thousand, thirty".