4021123029977 has 2 divisors, whose sum is σ = 4021123029978. Its totient is φ = 4021123029976.

The previous prime is 4021123029953. The next prime is 4021123030039. The reversal of 4021123029977 is 7799203211204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2493585233881 + 1527537796096 = 1579109^2 + 1235936^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021123029977 - 2¹⁰ = 4021123028953 is a prime.

It is a super-2 number, since 2×4021123029977² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4021123029377) 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, 2010561514988 + 2010561514989.

It is an arithmetic number, because the mean of its divisors is an integer number (2010561514989).

Almost surely, 2^{4021123029977} is an apocalyptic number.

It is an amenable number.

4021123029977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021123029977 is an equidigital number, since it uses as much as digits as its factorization.

4021123029977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 4021123029977 in words is "four trillion, twenty-one billion, one hundred twenty-three million, twenty-nine thousand, nine hundred seventy-seven".