203123161118231 has 8 divisors (see below), whose sum is σ = 203160977414928. Its totient is φ = 203085345600000.

The previous prime is 203123161118221. The next prime is 203123161118279. The reversal of 203123161118231 is 132811161321302.

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-203123161118231 is a prime.

It is a super-2 number, since 2×203123161118231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203123161118191 and 203123161118200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203123161118221) 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, 900251831 + ... + 900477431.

It is an arithmetic number, because the mean of its divisors is an integer number (25395122176866).

Almost surely, 2^{203123161118231} is an apocalyptic number.

203123161118231 is a deficient number, since it is larger than the sum of its proper divisors (37816296697).

203123161118231 is a wasteful number, since it uses less digits than its factorization.

203123161118231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389233.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 203123161118231 in words is "two hundred three trillion, one hundred twenty-three billion, one hundred sixty-one million, one hundred eighteen thousand, two hundred thirty-one".