203233220031157 has 2 divisors, whose sum is σ = 203233220031158. Its totient is φ = 203233220031156.

The previous prime is 203233220031091. The next prime is 203233220031341. The reversal of 203233220031157 is 751130022332302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194186064424356 + 9047155606801 = 13935066^2 + 3007849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203233220031157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203233220031757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101616610015578 + 101616610015579.

It is an arithmetic number, because the mean of its divisors is an integer number (101616610015579).

Almost surely, 2^{203233220031157} is an apocalyptic number.

It is an amenable number.

203233220031157 is a deficient number, since it is larger than the sum of its proper divisors (1).

203233220031157 is an equidigital number, since it uses as much as digits as its factorization.

203233220031157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 34.

Adding to 203233220031157 its reverse (751130022332302), we get a palindrome (954363242363459).

The spelling of 203233220031157 in words is "two hundred three trillion, two hundred thirty-three billion, two hundred twenty million, thirty-one thousand, one hundred fifty-seven".