1041242381 has 2 divisors, whose sum is σ = 1041242382. Its totient is φ = 1041242380.

The previous prime is 1041242327. The next prime is 1041242441. The reversal of 1041242381 is 1832421401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629558281 + 411684100 = 25091^2 + 20290^2 .

It is an emirp because it is prime and its reverse (1832421401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1041242381 is a prime.

It is a super-2 number, since 2×1041242381² = 2168371391981098322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1041242381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1041242311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520621190 + 520621191.

It is an arithmetic number, because the mean of its divisors is an integer number (520621191).

Almost surely, 2^1041242381 is an apocalyptic number.

It is an amenable number.

1041242381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041242381 is an equidigital number, since it uses as much as digits as its factorization.

1041242381 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 26.

The square root of 1041242381 is about 32268.2875436550. The cubic root of 1041242381 is about 1013.5626823781.

Adding to 1041242381 its reverse (1832421401), we get a palindrome (2873663782).

The spelling of 1041242381 in words is "one billion, forty-one million, two hundred forty-two thousand, three hundred eighty-one".