20000102131 has 2 divisors, whose sum is σ = 20000102132. Its totient is φ = 20000102130.

The previous prime is 20000102123. The next prime is 20000102141. The reversal of 20000102131 is 13120100002.

It is an a-pointer prime, because the next prime (20000102141) can be obtained adding 20000102131 to its sum of digits (10).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000102131 - 2³ = 20000102123 is a prime.

It is a super-2 number, since 2×20000102131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20000102141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000051065 + 10000051066.

It is an arithmetic number, because the mean of its divisors is an integer number (10000051066).

Almost surely, 2^20000102131 is an apocalyptic number.

20000102131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000102131 is an equidigital number, since it uses as much as digits as its factorization.

20000102131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20000102131 its reverse (13120100002), we get a palindrome (33120202133).

The spelling of 20000102131 in words is "twenty billion, one hundred two thousand, one hundred thirty-one".