21232342907 has 2 divisors, whose sum is σ = 21232342908. Its totient is φ = 21232342906.

The previous prime is 21232342871. The next prime is 21232342969. The reversal of 21232342907 is 70924323212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21232342907 - 2¹⁰ = 21232341883 is a prime.

It is not a weakly prime, because it can be changed into another prime (21232342987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616171453 + 10616171454.

It is an arithmetic number, because the mean of its divisors is an integer number (10616171454).

Almost surely, 2^21232342907 is an apocalyptic number.

21232342907 is a deficient number, since it is larger than the sum of its proper divisors (1).

21232342907 is an equidigital number, since it uses as much as digits as its factorization.

21232342907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 21232342907 in words is "twenty-one billion, two hundred thirty-two million, three hundred forty-two thousand, nine hundred seven".