1120000421 has 2 divisors, whose sum is σ = 1120000422. Its totient is φ = 1120000420.

The previous prime is 1120000393. The next prime is 1120000447. The reversal of 1120000421 is 1240000211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1087350625 + 32649796 = 32975^2 + 5714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120000421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120000621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560000210 + 560000211.

It is an arithmetic number, because the mean of its divisors is an integer number (560000211).

Almost surely, 2^1120000421 is an apocalyptic number.

It is an amenable number.

1120000421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120000421 is an equidigital number, since it uses as much as digits as its factorization.

1120000421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1120000421 is about 33466.4073512530. The cubic root of 1120000421 is about 1038.4989504916.

Adding to 1120000421 its reverse (1240000211), we get a palindrome (2360000632).

The spelling of 1120000421 in words is "one billion, one hundred twenty million, four hundred twenty-one", and thus it is an aban number.