1042101391 has 2 divisors, whose sum is σ = 1042101392. Its totient is φ = 1042101390.

The previous prime is 1042101331. The next prime is 1042101397. The reversal of 1042101391 is 1931012401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042101391 - 2¹¹ = 1042099343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042101397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521050695 + 521050696.

It is an arithmetic number, because the mean of its divisors is an integer number (521050696).

Almost surely, 2^1042101391 is an apocalyptic number.

1042101391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042101391 is an equidigital number, since it uses as much as digits as its factorization.

1042101391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1042101391 is about 32281.5952362952. The cubic root of 1042101391 is about 1013.8413306473.

Adding to 1042101391 its reverse (1931012401), we get a palindrome (2973113792).

The spelling of 1042101391 in words is "one billion, forty-two million, one hundred one thousand, three hundred ninety-one".