123012301217 has 12 divisors (see below), whose sum is σ = 139814114580. Its totient is φ = 107573506272.

The previous prime is 123012301207. The next prime is 123012301231. The reversal of 123012301217 is 712103210321.

It can be written as a sum of positive squares in 2 ways, for example, as 44993197456 + 78019103761 = 212116^2 + 279319^2 .

It is not a de Polignac number, because 123012301217 - 2¹⁰ = 123012300193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123012301192 and 123012301201.

It is not an unprimeable number, because it can be changed into a prime (123012301207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13101242 + ... + 13110627.

It is an arithmetic number, because the mean of its divisors is an integer number (11651176215).

Almost surely, 2^123012301217 is an apocalyptic number.

It is an amenable number.

123012301217 is a deficient number, since it is larger than the sum of its proper divisors (16801813363).

123012301217 is a wasteful number, since it uses less digits than its factorization.

123012301217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26211920 (or 26211901 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 123012301217 its reverse (712103210321), we get a palindrome (835115511538).

The spelling of 123012301217 in words is "one hundred twenty-three billion, twelve million, three hundred one thousand, two hundred seventeen".