20431012031343 has 32 divisors (see below), whose sum is σ = 30304194782400. Its totient is φ = 13604465092608.

The previous prime is 20431012031317. The next prime is 20431012031351. The reversal of 20431012031343 is 34313021013402.

It is a happy number.

20431012031343 is a `hidden beast` number, since 2 + 0 + 4 + 310 + 1 + 2 + 0 + 3 + 1 + 343 = 666.

It is not a de Polignac number, because 20431012031343 - 2⁹ = 20431012030831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431012031383) 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, 246599721 + ... + 246682557.

It is an arithmetic number, because the mean of its divisors is an integer number (947006086950).

Almost surely, 2^{20431012031343} is an apocalyptic number.

20431012031343 is a deficient number, since it is larger than the sum of its proper divisors (9873182751057).

20431012031343 is an equidigital number, since it uses as much as digits as its factorization.

20431012031343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93608 (or 93602 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 20431012031343 its reverse (34313021013402), we get a palindrome (54744033044745).

The spelling of 20431012031343 in words is "twenty trillion, four hundred thirty-one billion, twelve million, thirty-one thousand, three hundred forty-three".