4312404122981 has 2 divisors, whose sum is σ = 4312404122982. Its totient is φ = 4312404122980.

The previous prime is 4312404122933. The next prime is 4312404123031. The reversal of 4312404122981 is 1892214042134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3830259981025 + 482144141956 = 1957105^2 + 694366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4312404122981 is a prime.

It is a super-2 number, since 2×4312404122981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4312404122921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156202061490 + 2156202061491.

It is an arithmetic number, because the mean of its divisors is an integer number (2156202061491).

Almost surely, 2^{4312404122981} is an apocalyptic number.

It is an amenable number.

4312404122981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312404122981 is an equidigital number, since it uses as much as digits as its factorization.

4312404122981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 4312404122981 in words is "four trillion, three hundred twelve billion, four hundred four million, one hundred twenty-two thousand, nine hundred eighty-one".