21302333070 has 32 divisors (see below), whose sum is σ = 51211857312. Its totient is φ = 5671037952.

The previous prime is 21302332981. The next prime is 21302333071. The reversal of 21302333070 is 7033320312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21302333070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302333071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580927 + ... + 616506.

It is an arithmetic number, because the mean of its divisors is an integer number (1600370541).

Almost surely, 2^21302333070 is an apocalyptic number.

21302333070 is an abundant number, since it is smaller than the sum of its proper divisors (29909524242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21302333070 is a wasteful number, since it uses less digits than its factorization.

21302333070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198036.

The product of its (nonzero) digits is 2268, while the sum is 24.

Adding to 21302333070 its reverse (7033320312), we get a palindrome (28335653382).

The spelling of 21302333070 in words is "twenty-one billion, three hundred two million, three hundred thirty-three thousand, seventy".