21030113134 has 16 divisors (see below), whose sum is σ = 32150822400. Its totient is φ = 10315033344.

The previous prime is 21030113123. The next prime is 21030113141. The reversal of 21030113134 is 43131103012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442539 + ... + 487750.

It is an arithmetic number, because the mean of its divisors is an integer number (2009426400).

Almost surely, 2^21030113134 is an apocalyptic number.

21030113134 is a deficient number, since it is larger than the sum of its proper divisors (11120709266).

21030113134 is a wasteful number, since it uses less digits than its factorization.

21030113134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930507.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21030113134 its reverse (43131103012), we get a palindrome (64161216146).

The spelling of 21030113134 in words is "twenty-one billion, thirty million, one hundred thirteen thousand, one hundred thirty-four".