203023313331131 has 2 divisors, whose sum is σ = 203023313331132. Its totient is φ = 203023313331130.

The previous prime is 203023313331073. The next prime is 203023313331161. The reversal of 203023313331131 is 131133313320302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203023313331131 - 2²² = 203023309136827 is a prime.

It is a super-2 number, since 2×203023313331131² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 203023313331094 and 203023313331103.

It is not a weakly prime, because it can be changed into another prime (203023313331161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101511656665565 + 101511656665566.

It is an arithmetic number, because the mean of its divisors is an integer number (101511656665566).

Almost surely, 2^{203023313331131} is an apocalyptic number.

203023313331131 is a deficient number, since it is larger than the sum of its proper divisors (1).

203023313331131 is an equidigital number, since it uses as much as digits as its factorization.

203023313331131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 203023313331131 its reverse (131133313320302), we get a palindrome (334156626651433).

The spelling of 203023313331131 in words is "two hundred three trillion, twenty-three billion, three hundred thirteen million, three hundred thirty-one thousand, one hundred thirty-one".