203012312323133 has 4 divisors (see below), whose sum is σ = 203015202289500. Its totient is φ = 203009422356768.

The previous prime is 203012312323111. The next prime is 203012312323157. The reversal of 203012312323133 is 331323213210302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4542878748409 + 198469433574724 = 2131403^2 + 14087918^2 .

It is a cyclic number.

It is not a de Polignac number, because 203012312323133 - 2⁸ = 203012312322877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203012312323096 and 203012312323105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203012312323633) 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, 1444877810 + ... + 1445018307.

It is an arithmetic number, because the mean of its divisors is an integer number (50753800572375).

Almost surely, 2^{203012312323133} is an apocalyptic number.

It is an amenable number.

203012312323133 is a deficient number, since it is larger than the sum of its proper divisors (2889966367).

203012312323133 is an equidigital number, since it uses as much as digits as its factorization.

203012312323133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889966366.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 203012312323133 its reverse (331323213210302), we get a palindrome (534335525533435).

The spelling of 203012312323133 in words is "two hundred three trillion, twelve billion, three hundred twelve million, three hundred twenty-three thousand, one hundred thirty-three".