21003023295 has 12 divisors (see below), whose sum is σ = 36405240456. Its totient is φ = 11201612400.

The previous prime is 21003023291. The next prime is 21003023297. The reversal of 21003023295 is 59232030012.

It is not a de Polignac number, because 21003023295 - 2² = 21003023291 is a prime.

It is a super-2 number, since 2×21003023295² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003023291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233366881 + ... + 233366970.

It is an arithmetic number, because the mean of its divisors is an integer number (3033770038).

Almost surely, 2^21003023295 is an apocalyptic number.

21003023295 is a deficient number, since it is larger than the sum of its proper divisors (15402217161).

21003023295 is a wasteful number, since it uses less digits than its factorization.

21003023295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466733862 (or 466733859 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The spelling of 21003023295 in words is "twenty-one billion, three million, twenty-three thousand, two hundred ninety-five".