21092945603 has 2 divisors, whose sum is σ = 21092945604. Its totient is φ = 21092945602.

The previous prime is 21092945597. The next prime is 21092945609. The reversal of 21092945603 is 30654929012.

It is a balanced prime because it is at equal distance from previous prime (21092945597) and next prime (21092945609).

It is a cyclic number.

It is not a de Polignac number, because 21092945603 - 2³⁰ = 20019203779 is a prime.

It is a super-2 number, since 2×21092945603² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21092945609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10546472801 + 10546472802.

It is an arithmetic number, because the mean of its divisors is an integer number (10546472802).

Almost surely, 2^21092945603 is an apocalyptic number.

21092945603 is a deficient number, since it is larger than the sum of its proper divisors (1).

21092945603 is an equidigital number, since it uses as much as digits as its factorization.

21092945603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 21092945603 in words is "twenty-one billion, ninety-two million, nine hundred forty-five thousand, six hundred three".