21135037436130 has 32 divisors (see below), whose sum is σ = 50911263629568. Its totient is φ = 5615212896000.

The previous prime is 21135037436083. The next prime is 21135037436141. The reversal of 21135037436130 is 3163473053112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299809671 + ... + 1299825930.

It is an arithmetic number, because the mean of its divisors is an integer number (1590976988424).

Almost surely, 2^{21135037436130} is an apocalyptic number.

21135037436130 is an abundant number, since it is smaller than the sum of its proper divisors (29776226193438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21135037436130 is a wasteful number, since it uses less digits than its factorization.

21135037436130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599635882.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 21135037436130 in words is "twenty-one trillion, one hundred thirty-five billion, thirty-seven million, four hundred thirty-six thousand, one hundred thirty".