1213312230123 has 16 divisors (see below), whose sum is σ = 1858536615936. Its totient is φ = 689691317760.

The previous prime is 1213312230083. The next prime is 1213312230167. The reversal of 1213312230123 is 3210322133121.

It is not a de Polignac number, because 1213312230123 - 2²⁶ = 1213245121259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213312230093 and 1213312230102.

It is not an unprimeable number, because it can be changed into a prime (1213312230023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151244086 + ... + 151252107.

It is an arithmetic number, because the mean of its divisors is an integer number (116158538496).

Almost surely, 2^{1213312230123} is an apocalyptic number.

1213312230123 is a deficient number, since it is larger than the sum of its proper divisors (645224385813).

1213312230123 is a wasteful number, since it uses less digits than its factorization.

1213312230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302496394.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1213312230123 its reverse (3210322133121), we get a palindrome (4423634363244).

The spelling of 1213312230123 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, two hundred thirty thousand, one hundred twenty-three".