1321101135 has 12 divisors (see below), whose sum is σ = 2289908712. Its totient is φ = 704587248.

The previous prime is 1321101113. The next prime is 1321101143. The reversal of 1321101135 is 5311011231.

It is not a de Polignac number, because 1321101135 - 2⁷ = 1321101007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14678857 + ... + 14678946.

It is an arithmetic number, because the mean of its divisors is an integer number (190825726).

Almost surely, 2^1321101135 is an apocalyptic number.

1321101135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1321101135 is a deficient number, since it is larger than the sum of its proper divisors (968807577).

1321101135 is a wasteful number, since it uses less digits than its factorization.

1321101135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29357814 (or 29357811 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1321101135 is about 36346.9549618672. The cubic root of 1321101135 is about 1097.2662515909.

Adding to 1321101135 its reverse (5311011231), we get a palindrome (6632112366).

The spelling of 1321101135 in words is "one billion, three hundred twenty-one million, one hundred one thousand, one hundred thirty-five".