123101231313 has 4 divisors (see below), whose sum is σ = 164134975088. Its totient is φ = 82067487540.

The previous prime is 123101231311. The next prime is 123101231321. The reversal of 123101231313 is 313132101321.

It is a happy number.

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.

It is not a de Polignac number, because 123101231313 - 2¹ = 123101231311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123101231313.

It is not an unprimeable number, because it can be changed into a prime (123101231311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20516871883 + ... + 20516871888.

It is an arithmetic number, because the mean of its divisors is an integer number (41033743772).

Almost surely, 2^123101231313 is an apocalyptic number.

It is an amenable number.

123101231313 is a deficient number, since it is larger than the sum of its proper divisors (41033743775).

123101231313 is an equidigital number, since it uses as much as digits as its factorization.

123101231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41033743774.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123101231313 its reverse (313132101321), we get a palindrome (436233332634).

The spelling of 123101231313 in words is "one hundred twenty-three billion, one hundred one million, two hundred thirty-one thousand, three hundred thirteen".