1110531421 has 2 divisors, whose sum is σ = 1110531422. Its totient is φ = 1110531420.

The previous prime is 1110531403. The next prime is 1110531469. The reversal of 1110531421 is 1241350111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1032915321 + 77616100 = 32139^2 + 8810^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110531421 - 2¹⁷ = 1110400349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110531221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555265710 + 555265711.

It is an arithmetic number, because the mean of its divisors is an integer number (555265711).

Almost surely, 2^1110531421 is an apocalyptic number.

It is an amenable number.

1110531421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110531421 is an equidigital number, since it uses as much as digits as its factorization.

1110531421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1110531421 is about 33324.6368472336. The cubic root of 1110531421 is about 1035.5640141219.

Adding to 1110531421 its reverse (1241350111), we get a palindrome (2351881532).

The spelling of 1110531421 in words is "one billion, one hundred ten million, five hundred thirty-one thousand, four hundred twenty-one".