21410440031 has 8 divisors (see below), whose sum is σ = 22407631584. Its totient is φ = 20418773760.

The previous prime is 21410439983. The next prime is 21410440039. The reversal of 21410440031 is 13004401412.

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 21410440031 - 2¹⁰ = 21410439007 is a prime.

It is a super-2 number, since 2×21410440031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21410439985 and 21410440012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410440039) 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, 1373390 + ... + 1388891.

It is an arithmetic number, because the mean of its divisors is an integer number (2800953948).

Almost surely, 2^21410440031 is an apocalyptic number.

21410440031 is a deficient number, since it is larger than the sum of its proper divisors (997191553).

21410440031 is a wasteful number, since it uses less digits than its factorization.

21410440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762641.

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

Adding to 21410440031 its reverse (13004401412), we get a palindrome (34414841443).

The spelling of 21410440031 in words is "twenty-one billion, four hundred ten million, four hundred forty thousand, thirty-one".