30213123111123 has 32 divisors (see below), whose sum is σ = 40810510540800. Its totient is φ = 19880261758080.

The previous prime is 30213123111089. The next prime is 30213123111131. The reversal of 30213123111123 is 32111132131203.

It is not a de Polignac number, because 30213123111123 - 2¹⁰ = 30213123110099 is a prime.

It is a super-2 number, since 2×30213123111123² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30213123111093 and 30213123111102.

It is not an unprimeable number, because it can be changed into a prime (30213123111623) 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, 239451790 + ... + 239577932.

It is an arithmetic number, because the mean of its divisors is an integer number (1275328454400).

Almost surely, 2^{30213123111123} is an apocalyptic number.

30213123111123 is a deficient number, since it is larger than the sum of its proper divisors (10597387429677).

30213123111123 is a wasteful number, since it uses less digits than its factorization.

30213123111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128819.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 30213123111123 its reverse (32111132131203), we get a palindrome (62324255242326).

The spelling of 30213123111123 in words is "thirty trillion, two hundred thirteen billion, one hundred twenty-three million, one hundred eleven thousand, one hundred twenty-three".