123203030313 has 16 divisors (see below), whose sum is σ = 179229721536. Its totient is φ = 74657955840.

The previous prime is 123203030303. The next prime is 123203030341. The reversal of 123203030313 is 313030302321.

It is not a de Polignac number, because 123203030313 - 2²⁰ = 123201981737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123203030313.

It is not an unprimeable number, because it can be changed into a prime (123203030303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23256 + ... + 496937.

It is an arithmetic number, because the mean of its divisors is an integer number (11201857596).

Almost surely, 2^123203030313 is an apocalyptic number.

It is an amenable number.

123203030313 is a deficient number, since it is larger than the sum of its proper divisors (56026691223).

123203030313 is a wasteful number, since it uses less digits than its factorization.

123203030313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527384.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 123203030313 its reverse (313030302321), we get a palindrome (436233332634).

The spelling of 123203030313 in words is "one hundred twenty-three billion, two hundred three million, thirty thousand, three hundred thirteen".