21302503035 has 32 divisors (see below), whose sum is σ = 37224914688. Its totient is φ = 10316718720.

The previous prime is 21302503003. The next prime is 21302503039. The reversal of 21302503035 is 53030520312.

It is a happy number.

It is not a de Polignac number, because 21302503035 - 2⁵ = 21302503003 is a prime.

It is a super-2 number, since 2×21302503035² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21302502996 and 21302503014.

It is not an unprimeable number, because it can be changed into a prime (21302503039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72589 + ... + 218801.

It is an arithmetic number, because the mean of its divisors is an integer number (1163278584).

Almost surely, 2^21302503035 is an apocalyptic number.

21302503035 is a deficient number, since it is larger than the sum of its proper divisors (15922411653).

21302503035 is a wasteful number, since it uses less digits than its factorization.

21302503035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147115.

The product of its (nonzero) digits is 2700, while the sum is 24.

The spelling of 21302503035 in words is "twenty-one billion, three hundred two million, five hundred three thousand, thirty-five".