12302381 has 32 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 9313920.

The previous prime is 12302371. The next prime is 12302393. The reversal of 12302381 is 18320321.

It is not a de Polignac number, because 12302381 - 2⁶ = 12302317 is a prime.

It is a super-2 number, since 2×12302381² = 302697156538322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138185 + ... + 138273.

It is an arithmetic number, because the mean of its divisors is an integer number (504000).

Almost surely, 2^12302381 is an apocalyptic number.

It is an amenable number.

12302381 is a deficient number, since it is larger than the sum of its proper divisors (3825619).

12302381 is an equidigital number, since it uses as much as digits as its factorization.

12302381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12302381 is about 3507.4750177300. The cubic root of 12302381 is about 230.8499178163.

The spelling of 12302381 in words is "twelve million, three hundred two thousand, three hundred eighty-one".