213021320010 has 16 divisors (see below), whose sum is σ = 511251168096. Its totient is φ = 56805685328.

The previous prime is 213021320009. The next prime is 213021320021. The reversal of 213021320010 is 10023120312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3550355304 + ... + 3550355363.

It is an arithmetic number, because the mean of its divisors is an integer number (31953198006).

Almost surely, 2^213021320010 is an apocalyptic number.

213021320010 is an abundant number, since it is smaller than the sum of its proper divisors (298229848086).

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

213021320010 is a wasteful number, since it uses less digits than its factorization.

213021320010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7100710677.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 213021320010 its reverse (10023120312), we get a palindrome (223044440322).

The spelling of 213021320010 in words is "two hundred thirteen billion, twenty-one million, three hundred twenty thousand, ten".