11212100123 has 8 divisors (see below), whose sum is σ = 12938235648. Its totient is φ = 9517066344.

The previous prime is 11212100101. The next prime is 11212100143. The reversal of 11212100123 is 32100121211.

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

It is a cyclic number.

It is not a de Polignac number, because 11212100123 - 2¹⁴ = 11212083739 is a prime.

It is a super-2 number, since 2×11212100123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212100098 and 11212100107.

It is not an unprimeable number, because it can be changed into a prime (11212100143) 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, 7774661 + ... + 7776102.

It is an arithmetic number, because the mean of its divisors is an integer number (1617279456).

Almost surely, 2^11212100123 is an apocalyptic number.

11212100123 is a deficient number, since it is larger than the sum of its proper divisors (1726135525).

11212100123 is a wasteful number, since it uses less digits than its factorization.

11212100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15550873.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11212100123 its reverse (32100121211), we get a palindrome (43312221334).

The spelling of 11212100123 in words is "eleven billion, two hundred twelve million, one hundred thousand, one hundred twenty-three".