1323155351 has 4 divisors (see below), whose sum is σ = 1512177552. Its totient is φ = 1134133152.

The previous prime is 1323155347. The next prime is 1323155389. The reversal of 1323155351 is 1535513231.

It is a happy number.

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 1323155351 - 2² = 1323155347 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 (1323155851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94511090 + ... + 94511103.

It is an arithmetic number, because the mean of its divisors is an integer number (378044388).

Almost surely, 2^1323155351 is an apocalyptic number.

1323155351 is a deficient number, since it is larger than the sum of its proper divisors (189022201).

1323155351 is an equidigital number, since it uses as much as digits as its factorization.

1323155351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189022200.

The product of its digits is 6750, while the sum is 29.

The square root of 1323155351 is about 36375.2024186808. The cubic root of 1323155351 is about 1097.8346800932.

Adding to 1323155351 its reverse (1535513231), we get a palindrome (2858668582).

The spelling of 1323155351 in words is "one billion, three hundred twenty-three million, one hundred fifty-five thousand, three hundred fifty-one".