10031421 has 8 divisors (see below), whose sum is σ = 13508064. Its totient is φ = 6621200.

The previous prime is 10031407. The next prime is 10031431. The reversal of 10031421 is 12413001.

It is a happy number.

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 10031421 - 2⁷ = 10031293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10031397 and 10031406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16251 + ... + 16856.

It is an arithmetic number, because the mean of its divisors is an integer number (1688508).

Almost surely, 2^10031421 is an apocalyptic number.

It is an amenable number.

10031421 is a deficient number, since it is larger than the sum of its proper divisors (3476643).

10031421 is a wasteful number, since it uses less digits than its factorization.

10031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33211.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10031421 is about 3167.2418600416. The cubic root of 10031421 is about 215.6688813863.

Adding to 10031421 its reverse (12413001), we get a palindrome (22444422).

The spelling of 10031421 in words is "ten million, thirty-one thousand, four hundred twenty-one".