123100123213 has 8 divisors (see below), whose sum is σ = 123636877496. Its totient is φ = 122563584000.

The previous prime is 123100123199. The next prime is 123100123219. The reversal of 123100123213 is 312321001321.

It can be written as a sum of positive squares in 4 ways, for example, as 10625074084 + 112475049129 = 103078^2 + 335373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123100123213 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 (123100123219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152163 + ... + 1254463.

It is an arithmetic number, because the mean of its divisors is an integer number (15454609687).

Almost surely, 2^123100123213 is an apocalyptic number.

It is an amenable number.

123100123213 is a deficient number, since it is larger than the sum of its proper divisors (536754283).

123100123213 is a wasteful number, since it uses less digits than its factorization.

123100123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107535.

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

Adding to 123100123213 its reverse (312321001321), we get a palindrome (435421124534).

The spelling of 123100123213 in words is "one hundred twenty-three billion, one hundred million, one hundred twenty-three thousand, two hundred thirteen".