20031412 has 6 divisors (see below), whose sum is σ = 35054978. Its totient is φ = 10015704.

The previous prime is 20031409. The next prime is 20031439. The reversal of 20031412 is 21413002.

It can be written as a sum of positive squares in only one way, i.e., 13498276 + 6533136 = 3674^2 + 2556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20031392 and 20031401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2503923 + ... + 2503930.

Almost surely, 2^20031412 is an apocalyptic number.

It is an amenable number.

20031412 is a deficient number, since it is larger than the sum of its proper divisors (15023566).

20031412 is a wasteful number, since it uses less digits than its factorization.

20031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007857 (or 5007855 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20031412 is about 4475.6465454725. The cubic root of 20031412 is about 271.5837961359.

Adding to 20031412 its reverse (21413002), we get a palindrome (41444414).

The spelling of 20031412 in words is "twenty million, thirty-one thousand, four hundred twelve".