123010312213 has 4 divisors (see below), whose sum is σ = 123148994400. Its totient is φ = 122871630028.

The previous prime is 123010312199. The next prime is 123010312231. The reversal of 123010312213 is 312213010321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312213010321 = 1163 ⋅268454867.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123010312213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123010312613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69339763 + ... + 69341536.

It is an arithmetic number, because the mean of its divisors is an integer number (30787248600).

Almost surely, 2^123010312213 is an apocalyptic number.

It is an amenable number.

123010312213 is a deficient number, since it is larger than the sum of its proper divisors (138682187).

123010312213 is an equidigital number, since it uses as much as digits as its factorization.

123010312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138682186.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123010312213 its reverse (312213010321), we get a palindrome (435223322534).

The spelling of 123010312213 in words is "one hundred twenty-three billion, ten million, three hundred twelve thousand, two hundred thirteen".