123011302013 has 8 divisors (see below), whose sum is σ = 123173388120. Its totient is φ = 122849305920.

The previous prime is 123011301967. The next prime is 123011302079. The reversal of 123011302013 is 310203110321.

It can be written as a sum of positive squares in 4 ways, for example, as 32122317529 + 90888984484 = 179227^2 + 301478^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123011302013 - 2⁶ = 123011301949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123011301982 and 123011302000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123011302313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2969423 + ... + 3010563.

It is an arithmetic number, because the mean of its divisors is an integer number (15396673515).

Almost surely, 2^123011302013 is an apocalyptic number.

It is an amenable number.

123011302013 is a deficient number, since it is larger than the sum of its proper divisors (162086107).

123011302013 is a wasteful number, since it uses less digits than its factorization.

123011302013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45007.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123011302013 its reverse (310203110321), we get a palindrome (433214412334).

The spelling of 123011302013 in words is "one hundred twenty-three billion, eleven million, three hundred two thousand, thirteen".