21034431130102 has 32 divisors (see below), whose sum is σ = 34133554667520. Its totient is φ = 9663960126240.

The previous prime is 21034431130039. The next prime is 21034431130117. The reversal of 21034431130102 is 20103113443012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84056227 + ... + 84306097.

It is an arithmetic number, because the mean of its divisors is an integer number (1066673583360).

Almost surely, 2^{21034431130102} is an apocalyptic number.

21034431130102 is a deficient number, since it is larger than the sum of its proper divisors (13099123537418).

21034431130102 is a wasteful number, since it uses less digits than its factorization.

21034431130102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264628.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21034431130102 its reverse (20103113443012), we get a palindrome (41137544573114).

The spelling of 21034431130102 in words is "twenty-one trillion, thirty-four billion, four hundred thirty-one million, one hundred thirty thousand, one hundred two".