211121313201123 has 16 divisors (see below), whose sum is σ = 319103739252480. Its totient is φ = 123082870853664.

The previous prime is 211121313201013. The next prime is 211121313201131. The reversal of 211121313201123 is 321102313121112.

It is not a de Polignac number, because 211121313201123 - 2²⁶ = 211121246092259 is a prime.

It is a super-2 number, since 2×211121313201123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211121313201093 and 211121313201102.

It is not an unprimeable number, because it can be changed into a prime (211121313201133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142457025711 + ... + 142457027192.

It is an arithmetic number, because the mean of its divisors is an integer number (19943983703280).

Almost surely, 2^{211121313201123} is an apocalyptic number.

211121313201123 is a deficient number, since it is larger than the sum of its proper divisors (107982426051357).

211121313201123 is a wasteful number, since it uses less digits than its factorization.

211121313201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284914052938.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 211121313201123 its reverse (321102313121112), we get a palindrome (532223626322235).

The spelling of 211121313201123 in words is "two hundred eleven trillion, one hundred twenty-one billion, three hundred thirteen million, two hundred one thousand, one hundred twenty-three".