21001232410 has 64 divisors (see below), whose sum is σ = 39682980864. Its totient is φ = 7992230400.

The previous prime is 21001232393. The next prime is 21001232423. The reversal of 21001232410 is 1423210012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19793280 + ... + 19794340.

It is an arithmetic number, because the mean of its divisors is an integer number (620046576).

Almost surely, 2^21001232410 is an apocalyptic number.

21001232410 is a deficient number, since it is larger than the sum of its proper divisors (18681748454).

21001232410 is a wasteful number, since it uses less digits than its factorization.

21001232410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21001232410 its reverse (1423210012), we get a palindrome (22424442422).

The spelling of 21001232410 in words is "twenty-one billion, one million, two hundred thirty-two thousand, four hundred ten".