1235323131 has 16 divisors (see below), whose sum is σ = 1885215744. Its totient is φ = 704841984.

The previous prime is 1235323129. The next prime is 1235323211. The reversal of 1235323131 is 1313235321.

It is not a de Polignac number, because 1235323131 - 2¹ = 1235323129 is a prime.

It is a super-2 number, since 2×1235323131² = 3052046475967286322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1235323631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29571 + ... + 57836.

It is an arithmetic number, because the mean of its divisors is an integer number (117825984).

Almost surely, 2^1235323131 is an apocalyptic number.

1235323131 is a deficient number, since it is larger than the sum of its proper divisors (649892613).

1235323131 is an equidigital number, since it uses as much as digits as its factorization.

1235323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88090.

The product of its digits is 1620, while the sum is 24.

The square root of 1235323131 is about 35147.1639111892. The cubic root of 1235323131 is about 1072.9846882010.

Adding to 1235323131 its reverse (1313235321), we get a palindrome (2548558452).

The spelling of 1235323131 in words is "one billion, two hundred thirty-five million, three hundred twenty-three thousand, one hundred thirty-one".