1012321135 has 12 divisors (see below), whose sum is σ = 1413118008. Its totient is φ = 694162896.

The previous prime is 1012321133. The next prime is 1012321139. The reversal of 1012321135 is 5311232101.

It is not a de Polignac number, because 1012321135 - 2¹ = 1012321133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012321133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2065717 + ... + 2066206.

It is an arithmetic number, because the mean of its divisors is an integer number (117759834).

Almost surely, 2^1012321135 is an apocalyptic number.

1012321135 is a deficient number, since it is larger than the sum of its proper divisors (400796873).

1012321135 is an equidigital number, since it uses as much as digits as its factorization.

1012321135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131942 (or 4131935 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1012321135 is about 31816.9944369357. The cubic root of 1012321135 is about 1004.0902917029.

Adding to 1012321135 its reverse (5311232101), we get a palindrome (6323553236).

The spelling of 1012321135 in words is "one billion, twelve million, three hundred twenty-one thousand, one hundred thirty-five".