21032034407 has 2 divisors, whose sum is σ = 21032034408. Its totient is φ = 21032034406.

The previous prime is 21032034379. The next prime is 21032034493. The reversal of 21032034407 is 70443023012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21032034407 - 2⁸ = 21032034151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21032034497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516017203 + 10516017204.

It is an arithmetic number, because the mean of its divisors is an integer number (10516017204).

Almost surely, 2^21032034407 is an apocalyptic number.

21032034407 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032034407 is an equidigital number, since it uses as much as digits as its factorization.

21032034407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 21032034407 its reverse (70443023012), we get a palindrome (91475057419).

The spelling of 21032034407 in words is "twenty-one billion, thirty-two million, thirty-four thousand, four hundred seven".