20346461403131 has 2 divisors, whose sum is σ = 20346461403132. Its totient is φ = 20346461403130.

The previous prime is 20346461403113. The next prime is 20346461403187. The reversal of 20346461403131 is 13130416464302.

Together with previous prime (20346461403113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20346461403131 - 2¹⁴ = 20346461386747 is a prime.

It is a super-2 number, since 2×20346461403131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20346461403101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173230701565 + 10173230701566.

It is an arithmetic number, because the mean of its divisors is an integer number (10173230701566).

Almost surely, 2^{20346461403131} is an apocalyptic number.

20346461403131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346461403131 is an equidigital number, since it uses as much as digits as its factorization.

20346461403131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 38.

Adding to 20346461403131 its reverse (13130416464302), we get a palindrome (33476877867433).

The spelling of 20346461403131 in words is "twenty trillion, three hundred forty-six billion, four hundred sixty-one million, four hundred three thousand, one hundred thirty-one".