21144150335 has 64 divisors (see below), whose sum is σ = 32161342464. Its totient is φ = 12962073600.

The previous prime is 21144150289. The next prime is 21144150353. The reversal of 21144150335 is 53305144112.

It is not a de Polignac number, because 21144150335 - 2¹⁰ = 21144149311 is a prime.

It is a super-2 number, since 2×21144150335² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21144150298 and 21144150307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11831312 + ... + 11833098.

It is an arithmetic number, because the mean of its divisors is an integer number (502520976).

Almost surely, 2^21144150335 is an apocalyptic number.

21144150335 is a deficient number, since it is larger than the sum of its proper divisors (11017192129).

21144150335 is a wasteful number, since it uses less digits than its factorization.

21144150335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 21144150335 its reverse (53305144112), we get a palindrome (74449294447).

The spelling of 21144150335 in words is "twenty-one billion, one hundred forty-four million, one hundred fifty thousand, three hundred thirty-five".