1021312323 has 6 divisors (see below), whose sum is σ = 1475228924. Its totient is φ = 680874876.

The previous prime is 1021312297. The next prime is 1021312333. The reversal of 1021312323 is 3232131201.

1021312323 is a `hidden beast` number, since 10 + 21 + 312 + 323 = 666.

It is not a de Polignac number, because 1021312323 - 2²⁰ = 1020263747 is a prime.

It is a super-2 number, since 2×1021312323² = 2086157722223312658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021312296 and 1021312305.

It is not an unprimeable number, because it can be changed into a prime (1021312333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56739565 + ... + 56739582.

Almost surely, 2^1021312323 is an apocalyptic number.

1021312323 is a deficient number, since it is larger than the sum of its proper divisors (453916601).

1021312323 is a wasteful number, since it uses less digits than its factorization.

1021312323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113479153 (or 113479150 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1021312323 is about 31957.9774547765. The cubic root of 1021312323 is about 1007.0542285155.

Adding to 1021312323 its reverse (3232131201), we get a palindrome (4253443524).

The spelling of 1021312323 in words is "one billion, twenty-one million, three hundred twelve thousand, three hundred twenty-three".