2231213211123 has 32 divisors (see below), whose sum is σ = 3245448482304. Its totient is φ = 1355233254912.

The previous prime is 2231213211113. The next prime is 2231213211137. The reversal of 2231213211123 is 3211123121322.

It is not a de Polignac number, because 2231213211123 - 2⁴ = 2231213211107 is a prime.

It is a super-3 number, since 3×2231213211123³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2231213211093 and 2231213211102.

It is not an unprimeable number, because it can be changed into a prime (2231213211113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3116715 + ... + 3765147.

It is an arithmetic number, because the mean of its divisors is an integer number (101420265072).

Almost surely, 2^{2231213211123} is an apocalyptic number.

2231213211123 is a deficient number, since it is larger than the sum of its proper divisors (1014235271181).

2231213211123 is a wasteful number, since it uses less digits than its factorization.

2231213211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649595.

The product of its digits is 864, while the sum is 24.

Adding to 2231213211123 its reverse (3211123121322), we get a palindrome (5442336332445).

The spelling of 2231213211123 in words is "two trillion, two hundred thirty-one billion, two hundred thirteen million, two hundred eleven thousand, one hundred twenty-three".