10431220421 has 8 divisors (see below), whose sum is σ = 10446166560. Its totient is φ = 10416287952.

The previous prime is 10431220409. The next prime is 10431220433. The reversal of 10431220421 is 12402213401.

It is an interprime number because it is at equal distance from previous prime (10431220409) and next prime (10431220433).

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 10431220421 - 2⁶ = 10431220357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10431220393 and 10431220402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10431222421) 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, 3353615 + ... + 3356723.

It is an arithmetic number, because the mean of its divisors is an integer number (1305770820).

Almost surely, 2^10431220421 is an apocalyptic number.

It is an amenable number.

10431220421 is a deficient number, since it is larger than the sum of its proper divisors (14946139).

10431220421 is a wasteful number, since it uses less digits than its factorization.

10431220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10431220421 its reverse (12402213401), we get a palindrome (22833433822).

The spelling of 10431220421 in words is "ten billion, four hundred thirty-one million, two hundred twenty thousand, four hundred twenty-one".