1428261113 has 2 divisors, whose sum is σ = 1428261114. Its totient is φ = 1428261112.

The previous prime is 1428261083. The next prime is 1428261169. The reversal of 1428261113 is 3111628241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 906732544 + 521528569 = 30112^2 + 22837^2 .

It is an emirp because it is prime and its reverse (3111628241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1428261113 - 2⁸ = 1428260857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1428261173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714130556 + 714130557.

It is an arithmetic number, because the mean of its divisors is an integer number (714130557).

Almost surely, 2^1428261113 is an apocalyptic number.

It is an amenable number.

1428261113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428261113 is an equidigital number, since it uses as much as digits as its factorization.

1428261113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 1428261113 is about 37792.3419888210. The cubic root of 1428261113 is about 1126.1663263455.

Adding to 1428261113 its reverse (3111628241), we get a palindrome (4539889354).

The spelling of 1428261113 in words is "one billion, four hundred twenty-eight million, two hundred sixty-one thousand, one hundred thirteen".