21024414043 has 2 divisors, whose sum is σ = 21024414044. Its totient is φ = 21024414042.

The previous prime is 21024414007. The next prime is 21024414049. The reversal of 21024414043 is 34041442012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21024414043 - 2²⁵ = 20990859611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21024413999 and 21024414017.

It is not a weakly prime, because it can be changed into another prime (21024414049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10512207021 + 10512207022.

It is an arithmetic number, because the mean of its divisors is an integer number (10512207022).

Almost surely, 2^21024414043 is an apocalyptic number.

21024414043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21024414043 is an equidigital number, since it uses as much as digits as its factorization.

21024414043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21024414043 its reverse (34041442012), we get a palindrome (55065856055).

The spelling of 21024414043 in words is "twenty-one billion, twenty-four million, four hundred fourteen thousand, forty-three".