421034334321131 has 2 divisors, whose sum is σ = 421034334321132. Its totient is φ = 421034334321130.

The previous prime is 421034334321091. The next prime is 421034334321137. The reversal of 421034334321131 is 131123433430124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421034334321131 is a prime.

It is a super-2 number, since 2×421034334321131² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421034334321091 and 421034334321100.

It is not a weakly prime, because it can be changed into another prime (421034334321137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210517167160565 + 210517167160566.

It is an arithmetic number, because the mean of its divisors is an integer number (210517167160566).

Almost surely, 2^{421034334321131} is an apocalyptic number.

421034334321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

421034334321131 is an equidigital number, since it uses as much as digits as its factorization.

421034334321131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 421034334321131 its reverse (131123433430124), we get a palindrome (552157767751255).

The spelling of 421034334321131 in words is "four hundred twenty-one trillion, thirty-four billion, three hundred thirty-four million, three hundred twenty-one thousand, one hundred thirty-one".