10312381 has 8 divisors (see below), whose sum is σ = 10692440. Its totient is φ = 9937728.

The previous prime is 10312373. The next prime is 10312397. The reversal of 10312381 is 18321301.

10312381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4137156 + 6175225 = 2034^2 + 2485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10312381 - 2³ = 10312373 is a prime.

It is a super-2 number, since 2×10312381² = 212690403778322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2755 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (1336555).

Almost surely, 2^10312381 is an apocalyptic number.

It is an amenable number.

10312381 is a deficient number, since it is larger than the sum of its proper divisors (380059).

10312381 is a wasteful number, since it uses less digits than its factorization.

10312381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 10312381 is about 3211.2896163380. The cubic root of 10312381 is about 217.6638550366.

Adding to 10312381 its reverse (18321301), we get a palindrome (28633682).

The spelling of 10312381 in words is "ten million, three hundred twelve thousand, three hundred eighty-one".