21014341144 has 16 divisors (see below), whose sum is σ = 40318213320. Its totient is φ = 10262817600.

The previous prime is 21014341141. The next prime is 21014341147. The reversal of 21014341144 is 44114341012.

It is an interprime number because it is at equal distance from previous prime (21014341141) and next prime (21014341147).

It is a super-2 number, since 2×21014341144² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014341141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30543757 + ... + 30544444.

Almost surely, 2^21014341144 is an apocalyptic number.

It is an amenable number.

21014341144 is a deficient number, since it is larger than the sum of its proper divisors (19303872176).

21014341144 is a wasteful number, since it uses less digits than its factorization.

21014341144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61088250 (or 61088246 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 21014341144 its reverse (44114341012), we get a palindrome (65128682156).

The spelling of 21014341144 in words is "twenty-one billion, fourteen million, three hundred forty-one thousand, one hundred forty-four".