203011013330023 has 4 divisors (see below), whose sum is σ = 203090594286448. Its totient is φ = 202931432373600.

The previous prime is 203011013329979. The next prime is 203011013330053. The reversal of 203011013330023 is 320033310110302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203011013330023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203011013329976 and 203011013330003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203011013330053) 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, 39790474386 + ... + 39790479487.

It is an arithmetic number, because the mean of its divisors is an integer number (50772648571612).

Almost surely, 2^{203011013330023} is an apocalyptic number.

203011013330023 is a deficient number, since it is larger than the sum of its proper divisors (79580956425).

203011013330023 is an equidigital number, since it uses as much as digits as its factorization.

203011013330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79580956424.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 203011013330023 its reverse (320033310110302), we get a palindrome (523044323440325).

The spelling of 203011013330023 in words is "two hundred three trillion, eleven billion, thirteen million, three hundred thirty thousand, twenty-three".