1042124491 has 2 divisors, whose sum is σ = 1042124492. Its totient is φ = 1042124490.

The previous prime is 1042124443. The next prime is 1042124507. The reversal of 1042124491 is 1944212401.

It is a strong prime.

It is an emirp because it is prime and its reverse (1944212401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042124491 - 2¹⁷ = 1041993419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042124401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521062245 + 521062246.

It is an arithmetic number, because the mean of its divisors is an integer number (521062246).

Almost surely, 2^1042124491 is an apocalyptic number.

1042124491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042124491 is an equidigital number, since it uses as much as digits as its factorization.

1042124491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1042124491 is about 32281.9530233225. The cubic root of 1042124491 is about 1013.8488217807.

Adding to 1042124491 its reverse (1944212401), we get a palindrome (2986336892).

The spelling of 1042124491 in words is "one billion, forty-two million, one hundred twenty-four thousand, four hundred ninety-one".