1042234421 has 2 divisors, whose sum is σ = 1042234422. Its totient is φ = 1042234420.

The previous prime is 1042234409. The next prime is 1042234423. The reversal of 1042234421 is 1244322401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1025920900 + 16313521 = 32030^2 + 4039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042234421 - 2⁶ = 1042234357 is a prime.

It is a super-3 number, since 3×1042234421³ (a number of 28 digits) contains 333 as substring.

Together with 1042234423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042234423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521117210 + 521117211.

It is an arithmetic number, because the mean of its divisors is an integer number (521117211).

Almost surely, 2^1042234421 is an apocalyptic number.

It is an amenable number.

1042234421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042234421 is an equidigital number, since it uses as much as digits as its factorization.

1042234421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1042234421 is about 32283.6556325333. The cubic root of 1042234421 is about 1013.8844696274.

Adding to 1042234421 its reverse (1244322401), we get a palindrome (2286556822).

The spelling of 1042234421 in words is "one billion, forty-two million, two hundred thirty-four thousand, four hundred twenty-one".