203223013123 has 8 divisors (see below), whose sum is σ = 218860544000. Its totient is φ = 187586195328.

The previous prime is 203223013093. The next prime is 203223013151. The reversal of 203223013123 is 321310322302.

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-203223013123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203223013094 and 203223013103.

It is not an unprimeable number, because it can be changed into a prime (203223013193) 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, 512923 + ... + 818251.

It is an arithmetic number, because the mean of its divisors is an integer number (27357568000).

Almost surely, 2^203223013123 is an apocalyptic number.

203223013123 is a deficient number, since it is larger than the sum of its proper divisors (15637530877).

203223013123 is a wasteful number, since it uses less digits than its factorization.

203223013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356541.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 203223013123 its reverse (321310322302), we get a palindrome (524533335425).

The spelling of 203223013123 in words is "two hundred three billion, two hundred twenty-three million, thirteen thousand, one hundred twenty-three".