1231233035 has 4 divisors (see below), whose sum is σ = 1477479648. Its totient is φ = 984986424.

The previous prime is 1231233023. The next prime is 1231233037. The reversal of 1231233035 is 5303321321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1231233035 - 2¹⁸ = 1230970891 is a prime.

It is a super-2 number, since 2×1231233035² = 3031869572950622450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231233035.

It is not an unprimeable number, because it can be changed into a prime (1231233037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123123299 + ... + 123123308.

It is an arithmetic number, because the mean of its divisors is an integer number (369369912).

Almost surely, 2^1231233035 is an apocalyptic number.

1231233035 is a deficient number, since it is larger than the sum of its proper divisors (246246613).

1231233035 is an equidigital number, since it uses as much as digits as its factorization.

1231233035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246246612.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1231233035 is about 35088.9303769722. The cubic root of 1231233035 is about 1071.7991784632.

Adding to 1231233035 its reverse (5303321321), we get a palindrome (6534554356).

The spelling of 1231233035 in words is "one billion, two hundred thirty-one million, two hundred thirty-three thousand, thirty-five".