1113401287 has 2 divisors, whose sum is σ = 1113401288. Its totient is φ = 1113401286.

The previous prime is 1113401249. The next prime is 1113401291. The reversal of 1113401287 is 7821043111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113401287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113401087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556700643 + 556700644.

It is an arithmetic number, because the mean of its divisors is an integer number (556700644).

Almost surely, 2^1113401287 is an apocalyptic number.

1113401287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113401287 is an equidigital number, since it uses as much as digits as its factorization.

1113401287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1113401287 is about 33367.6682883296. The cubic root of 1113401287 is about 1036.4552911928.

Adding to 1113401287 its reverse (7821043111), we get a palindrome (8934444398).

The spelling of 1113401287 in words is "one billion, one hundred thirteen million, four hundred one thousand, two hundred eighty-seven".