213113211030 has 64 divisors (see below), whose sum is σ = 568587064320. Its totient is φ = 56801672928.

The previous prime is 213113211023. The next prime is 213113211037. The reversal of 213113211030 is 30112311312.

213113211030 is a `hidden beast` number, since 2 + 1 + 311 + 321 + 1 + 0 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (213113211023) and next prime (213113211037).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 213113210994 and 213113211012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113211037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343779 + ... + 737841.

It is an arithmetic number, because the mean of its divisors is an integer number (8884172880).

Almost surely, 2^213113211030 is an apocalyptic number.

213113211030 is an abundant number, since it is smaller than the sum of its proper divisors (355473853290).

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

213113211030 is a wasteful number, since it uses less digits than its factorization.

213113211030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396082 (or 396076 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213113211030 its reverse (30112311312), we get a palindrome (243225522342).

The spelling of 213113211030 in words is "two hundred thirteen billion, one hundred thirteen million, two hundred eleven thousand, thirty".