21412313029 has 2 divisors, whose sum is σ = 21412313030. Its totient is φ = 21412313028.

The previous prime is 21412312993. The next prime is 21412313047. The reversal of 21412313029 is 92031321412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21024420004 + 387893025 = 144998^2 + 19695^2 .

It is a cyclic number.

It is not a de Polignac number, because 21412313029 - 2⁹ = 21412312517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21412312988 and 21412313006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21412313129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10706156514 + 10706156515.

It is an arithmetic number, because the mean of its divisors is an integer number (10706156515).

Almost surely, 2^21412313029 is an apocalyptic number.

It is an amenable number.

21412313029 is a deficient number, since it is larger than the sum of its proper divisors (1).

21412313029 is an equidigital number, since it uses as much as digits as its factorization.

21412313029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 21412313029 in words is "twenty-one billion, four hundred twelve million, three hundred thirteen thousand, twenty-nine".