11212002012123 has 24 divisors (see below), whose sum is σ = 17667942220656. Its totient is φ = 6794943076800.

The previous prime is 11212002012067. The next prime is 11212002012139. The reversal of 11212002012123 is 32121020021211.

It is not a de Polignac number, because 11212002012123 - 2⁸ = 11212002011867 is a prime.

It is a super-3 number, since 3×11212002012123³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212002012096 and 11212002012105.

It is not an unprimeable number, because it can be changed into a prime (11212002010123) 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, 1508193 + ... + 4969773.

It is an arithmetic number, because the mean of its divisors is an integer number (736164259194).

Almost surely, 2^{11212002012123} is an apocalyptic number.

11212002012123 is a deficient number, since it is larger than the sum of its proper divisors (6455940208533).

11212002012123 is a wasteful number, since it uses less digits than its factorization.

11212002012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494315 (or 3494312 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11212002012123 its reverse (32121020021211), we get a palindrome (43333022033334).

The spelling of 11212002012123 in words is "eleven trillion, two hundred twelve billion, two million, twelve thousand, one hundred twenty-three".