20343030131 has 2 divisors, whose sum is σ = 20343030132. Its totient is φ = 20343030130.

The previous prime is 20343030119. The next prime is 20343030187. The reversal of 20343030131 is 13103034302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20343030131 is a prime.

It is a super-2 number, since 2×20343030131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20343035131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171515065 + 10171515066.

It is an arithmetic number, because the mean of its divisors is an integer number (10171515066).

Almost surely, 2^20343030131 is an apocalyptic number.

20343030131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20343030131 is an equidigital number, since it uses as much as digits as its factorization.

20343030131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20343030131 its reverse (13103034302), we get a palindrome (33446064433).

The spelling of 20343030131 in words is "twenty billion, three hundred forty-three million, thirty thousand, one hundred thirty-one".