1127072021 has 2 divisors, whose sum is σ = 1127072022. Its totient is φ = 1127072020.

The previous prime is 1127071999. The next prime is 1127072081. The reversal of 1127072021 is 1202707211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1016716996 + 110355025 = 31886^2 + 10505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127072021 - 2³⁰ = 53330197 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1127072081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563536010 + 563536011.

It is an arithmetic number, because the mean of its divisors is an integer number (563536011).

Almost surely, 2^1127072021 is an apocalyptic number.

It is an amenable number.

1127072021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127072021 is an equidigital number, since it uses as much as digits as its factorization.

1127072021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 1127072021 is about 33571.8933186676. The cubic root of 1127072021 is about 1040.6800350865.

Adding to 1127072021 its reverse (1202707211), we get a palindrome (2329779232).

The spelling of 1127072021 in words is "one billion, one hundred twenty-seven million, seventy-two thousand, twenty-one".