21300563070 has 48 divisors (see below), whose sum is σ = 56048730192. Its totient is φ = 5611712640.

The previous prime is 21300563069. The next prime is 21300563071. The reversal of 21300563070 is 7036500312.

It is a happy number.

21300563070 is a `hidden beast` number, since 2 + 1 + 30 + 0 + 563 + 0 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (21300563069) and next prime (21300563071).

It is a super-3 number, since 3×21300563070³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300563071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1418271 + ... + 1433210.

It is an arithmetic number, because the mean of its divisors is an integer number (1167681879).

Almost surely, 2^21300563070 is an apocalyptic number.

21300563070 is an abundant number, since it is smaller than the sum of its proper divisors (34748167122).

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

21300563070 is a wasteful number, since it uses less digits than its factorization.

21300563070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851577 (or 2851574 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The spelling of 21300563070 in words is "twenty-one billion, three hundred million, five hundred sixty-three thousand, seventy".