21423200232412 has 24 divisors (see below), whose sum is σ = 40907012090112. Its totient is φ = 9735871791600.

The previous prime is 21423200232391. The next prime is 21423200232433.

21423200232412 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (21423200232391) and next prime (21423200232433).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48439764 + ... + 48880027.

It is an arithmetic number, because the mean of its divisors is an integer number (1704458837088).

Almost surely, 2^{21423200232412} is an apocalyptic number.

21423200232412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21423200232412 is a deficient number, since it is larger than the sum of its proper divisors (19483811857700).

21423200232412 is a wasteful number, since it uses less digits than its factorization.

21423200232412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97324809 (or 97324807 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 21423200 and 232412, that added together give a palindrome (21655612).

The spelling of 21423200232412 in words is "twenty-one trillion, four hundred twenty-three billion, two hundred million, two hundred thirty-two thousand, four hundred twelve".