10312323021 has 96 divisors (see below), whose sum is σ = 20540851968. Its totient is φ = 4811166720.

The previous prime is 10312322989. The next prime is 10312323053. The reversal of 10312323021 is 12032321301.

10312323021 is a `hidden beast` number, since 10 + 312 + 323 + 0 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (10312322989) and next prime (10312323053).

It is not a de Polignac number, because 10312323021 - 2⁵ = 10312322989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10312322985 and 10312323003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312323221) 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 95 ways as a sum of consecutive naturals, for example, 317865 + ... + 348801.

It is an arithmetic number, because the mean of its divisors is an integer number (213967208).

Almost surely, 2^10312323021 is an apocalyptic number.

10312323021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10312323021 is a deficient number, since it is larger than the sum of its proper divisors (10228528947).

10312323021 is a wasteful number, since it uses less digits than its factorization.

10312323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31011 (or 31008 counting only the distinct ones).

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

Adding to 10312323021 its reverse (12032321301), we get a palindrome (22344644322).

It can be divided in two parts, 10312 and 323021, that added together give a palindrome (333333).

The spelling of 10312323021 in words is "ten billion, three hundred twelve million, three hundred twenty-three thousand, twenty-one".