21401031410 has 16 divisors (see below), whose sum is σ = 42023843712. Its totient is φ = 7782193200.

The previous prime is 21401031391. The next prime is 21401031419. The reversal of 21401031410 is 1413010412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21401031419) 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, 97277306 + ... + 97277525.

It is an arithmetic number, because the mean of its divisors is an integer number (2626490232).

Almost surely, 2^21401031410 is an apocalyptic number.

21401031410 is a deficient number, since it is larger than the sum of its proper divisors (20622812302).

21401031410 is a wasteful number, since it uses less digits than its factorization.

21401031410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194554849.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21401031410 its reverse (1413010412), we get a palindrome (22814041822).

The spelling of 21401031410 in words is "twenty-one billion, four hundred one million, thirty-one thousand, four hundred ten".