11212011123 has 8 divisors (see below), whose sum is σ = 15006190848. Its totient is φ = 7446252744.

The previous prime is 11212011119. The next prime is 11212011127. The reversal of 11212011123 is 32111021211.

It is an interprime number because it is at equal distance from previous prime (11212011119) and next prime (11212011127).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11212011123 - 2² = 11212011119 is a prime.

It is a super-2 number, since 2×11212011123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212011127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7104415 + ... + 7105992.

It is an arithmetic number, because the mean of its divisors is an integer number (1875773856).

Almost surely, 2^11212011123 is an apocalyptic number.

11212011123 is a deficient number, since it is larger than the sum of its proper divisors (3794179725).

11212011123 is a wasteful number, since it uses less digits than its factorization.

11212011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14210673.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11212011123 its reverse (32111021211), we get a palindrome (43323032334).

The spelling of 11212011123 in words is "eleven billion, two hundred twelve million, eleven thousand, one hundred twenty-three".