1142412421 has 2 divisors, whose sum is σ = 1142412422. Its totient is φ = 1142412420.

The previous prime is 1142412413. The next prime is 1142412493. The reversal of 1142412421 is 1242142411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1091575521 + 50836900 = 33039^2 + 7130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142412421 - 2³ = 1142412413 is a prime.

It is a super-2 number, since 2×1142412421² = 2610212279310162482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1142412392 and 1142412401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142412521) 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, 571206210 + 571206211.

It is an arithmetic number, because the mean of its divisors is an integer number (571206211).

Almost surely, 2^1142412421 is an apocalyptic number.

It is an amenable number.

1142412421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142412421 is an equidigital number, since it uses as much as digits as its factorization.

1142412421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 22.

The square root of 1142412421 is about 33799.5920241650. The cubic root of 1142412421 is about 1045.3802851191.

Adding to 1142412421 its reverse (1242142411), we get a palindrome (2384554832).

The spelling of 1142412421 in words is "one billion, one hundred forty-two million, four hundred twelve thousand, four hundred twenty-one".