20203131131233 has 4 divisors (see below), whose sum is σ = 20220502698288. Its totient is φ = 20185759564180.

The previous prime is 20203131131213. The next prime is 20203131131237. The reversal of 20203131131233 is 33213113130202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20203131131233 - 2⁴¹ = 18004107875681 is a prime.

It is a super-5 number, since 5×20203131131233⁵ (a number of 68 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20203131131198 and 20203131131207.

It is not an unprimeable number, because it can be changed into a prime (20203131131237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8685781783 + ... + 8685784108.

It is an arithmetic number, because the mean of its divisors is an integer number (5055125674572).

Almost surely, 2^{20203131131233} is an apocalyptic number.

It is an amenable number.

20203131131233 is a deficient number, since it is larger than the sum of its proper divisors (17371567055).

20203131131233 is a wasteful number, since it uses less digits than its factorization.

20203131131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17371567054.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20203131131233 its reverse (33213113130202), we get a palindrome (53416244261435).

The spelling of 20203131131233 in words is "twenty trillion, two hundred three billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred thirty-three".