21150344236134 has 16 divisors (see below), whose sum is σ = 42696022010688. Its totient is φ = 6984225822312.

The previous prime is 21150344236129. The next prime is 21150344236159. The reversal of 21150344236134 is 43163244305112.

It is a super-2 number, since 2×21150344236134² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21150344236092 and 21150344236101.

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, 16472230072 + ... + 16472231355.

It is an arithmetic number, because the mean of its divisors is an integer number (2668501375668).

Almost surely, 2^{21150344236134} is an apocalyptic number.

21150344236134 is an abundant number, since it is smaller than the sum of its proper divisors (21545677774554).

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

21150344236134 is a wasteful number, since it uses less digits than its factorization.

21150344236134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32944461539.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 21150344236134 in words is "twenty-one trillion, one hundred fifty billion, three hundred forty-four million, two hundred thirty-six thousand, one hundred thirty-four".