21024042350311 has 16 divisors (see below), whose sum is σ = 28228084835328. Its totient is φ = 15122188303200.

The previous prime is 21024042350287. The next prime is 21024042350321. The reversal of 21024042350311 is 11305324042012.

It is not a de Polignac number, because 21024042350311 - 2⁷ = 21024042350183 is a prime.

It is a super-3 number, since 3×21024042350311³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21024042350311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21024042350321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10501518655 + ... + 10501520656.

It is an arithmetic number, because the mean of its divisors is an integer number (1764255302208).

Almost surely, 2^{21024042350311} is an apocalyptic number.

21024042350311 is a deficient number, since it is larger than the sum of its proper divisors (7204042485017).

21024042350311 is a wasteful number, since it uses less digits than its factorization.

21024042350311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21003039342.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 21024042350311 its reverse (11305324042012), we get a palindrome (32329366392323).

The spelling of 21024042350311 in words is "twenty-one trillion, twenty-four billion, forty-two million, three hundred fifty thousand, three hundred eleven".