4012705231421 has 2 divisors, whose sum is σ = 4012705231422. Its totient is φ = 4012705231420.

The previous prime is 4012705231411. The next prime is 4012705231429. The reversal of 4012705231421 is 1241325072104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3944474044900 + 68231186521 = 1986070^2 + 261211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012705231421 - 2³⁰ = 4011631489597 is a prime.

It is a super-2 number, since 2×4012705231421² (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 (4012705231429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006352615710 + 2006352615711.

It is an arithmetic number, because the mean of its divisors is an integer number (2006352615711).

Almost surely, 2^{4012705231421} is an apocalyptic number.

It is an amenable number.

4012705231421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012705231421 is an equidigital number, since it uses as much as digits as its factorization.

4012705231421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 4012705231421 in words is "four trillion, twelve billion, seven hundred five million, two hundred thirty-one thousand, four hundred twenty-one".