203131134132373 has 2 divisors, whose sum is σ = 203131134132374. Its totient is φ = 203131134132372.

The previous prime is 203131134132361. The next prime is 203131134132457. The reversal of 203131134132373 is 373231431131302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202140348806449 + 990785325924 = 14217607^2 + 995382^2 .

It is a cyclic number.

It is not a de Polignac number, because 203131134132373 - 2⁵ = 203131134132341 is a prime.

It is a super-2 number, since 2×203131134132373² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203131134102373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101565567066186 + 101565567066187.

It is an arithmetic number, because the mean of its divisors is an integer number (101565567066187).

Almost surely, 2^{203131134132373} is an apocalyptic number.

It is an amenable number.

203131134132373 is a deficient number, since it is larger than the sum of its proper divisors (1).

203131134132373 is an equidigital number, since it uses as much as digits as its factorization.

203131134132373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 37.

Adding to 203131134132373 its reverse (373231431131302), we get a palindrome (576362565263675).

The spelling of 203131134132373 in words is "two hundred three trillion, one hundred thirty-one billion, one hundred thirty-four million, one hundred thirty-two thousand, three hundred seventy-three".