1235131323 has 16 divisors (see below), whose sum is σ = 1664796672. Its totient is φ = 814460000.

The previous prime is 1235131321. The next prime is 1235131351. The reversal of 1235131323 is 3231315321.

It is a cyclic number.

It is not a de Polignac number, because 1235131323 - 2¹ = 1235131321 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1235131293 and 1235131302.

It is not an unprimeable number, because it can be changed into a prime (1235131321) 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 15 ways as a sum of consecutive naturals, for example, 584038 + ... + 586148.

It is an arithmetic number, because the mean of its divisors is an integer number (104049792).

Almost surely, 2^1235131323 is an apocalyptic number.

1235131323 is a deficient number, since it is larger than the sum of its proper divisors (429665349).

1235131323 is a wasteful number, since it uses less digits than its factorization.

1235131323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146.

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

The square root of 1235131323 is about 35144.4351640484. The cubic root of 1235131323 is about 1072.9291513959.

Adding to 1235131323 its reverse (3231315321), we get a palindrome (4466446644).

The spelling of 1235131323 in words is "one billion, two hundred thirty-five million, one hundred thirty-one thousand, three hundred twenty-three".