203103133131351 has 4 divisors (see below), whose sum is σ = 270804177508472. Its totient is φ = 135402088754232.

The previous prime is 203103133131329. The next prime is 203103133131517. The reversal of 203103133131351 is 153131331301302.

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

It is not a de Polignac number, because 203103133131351 - 2⁹ = 203103133130839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203103133131251) 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, 33850522188556 + ... + 33850522188561.

It is an arithmetic number, because the mean of its divisors is an integer number (67701044377118).

Almost surely, 2^{203103133131351} is an apocalyptic number.

203103133131351 is a deficient number, since it is larger than the sum of its proper divisors (67701044377121).

203103133131351 is an equidigital number, since it uses as much as digits as its factorization.

203103133131351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67701044377120.

The product of its (nonzero) digits is 7290, while the sum is 30.

Adding to 203103133131351 its reverse (153131331301302), we get a palindrome (356234464432653).

The spelling of 203103133131351 in words is "two hundred three trillion, one hundred three billion, one hundred thirty-three million, one hundred thirty-one thousand, three hundred fifty-one".