20631682031 has 2 divisors, whose sum is σ = 20631682032. Its totient is φ = 20631682030.

The previous prime is 20631681997. The next prime is 20631682063. The reversal of 20631682031 is 13028613602.

It is an a-pointer prime, because the next prime (20631682063) can be obtained adding 20631682031 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20631682031 - 2²⁶ = 20564573167 is a prime.

It is a super-2 number, since 2×20631682031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20631682531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10315841015 + 10315841016.

It is an arithmetic number, because the mean of its divisors is an integer number (10315841016).

Almost surely, 2^20631682031 is an apocalyptic number.

20631682031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20631682031 is an equidigital number, since it uses as much as digits as its factorization.

20631682031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 20631682031 in words is "twenty billion, six hundred thirty-one million, six hundred eighty-two thousand, thirty-one".