20203131031193 has 32 divisors (see below), whose sum is σ = 22237503381504. Its totient is φ = 18202325400000.

The previous prime is 20203131031183. The next prime is 20203131031217. The reversal of 20203131031193 is 39113013130202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20203131031193 - 2¹⁴ = 20203131014809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20203131031103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1564793408 + ... + 1564806318.

It is an arithmetic number, because the mean of its divisors is an integer number (694921980672).

Almost surely, 2^{20203131031193} is an apocalyptic number.

It is an amenable number.

20203131031193 is a deficient number, since it is larger than the sum of its proper divisors (2034372350311).

20203131031193 is a wasteful number, since it uses less digits than its factorization.

20203131031193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15197.

The product of its (nonzero) digits is 2916, while the sum is 29.

Adding to 20203131031193 its reverse (39113013130202), we get a palindrome (59316144161395).

The spelling of 20203131031193 in words is "twenty trillion, two hundred three billion, one hundred thirty-one million, thirty-one thousand, one hundred ninety-three".