211310310030 has 32 divisors (see below), whose sum is σ = 507736573344. Its totient is φ = 56283657216.

The previous prime is 211310310011. The next prime is 211310310037. The reversal of 211310310030 is 30013013112.

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

It is a junction number, because it is equal to n+sod(n) for n = 211310309991 and 211310310009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211310310037) 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, 4083787 + ... + 4135206.

It is an arithmetic number, because the mean of its divisors is an integer number (15866767917).

Almost surely, 2^211310310030 is an apocalyptic number.

211310310030 is an abundant number, since it is smaller than the sum of its proper divisors (296426263314).

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

211310310030 is a wasteful number, since it uses less digits than its factorization.

211310310030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8219860.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 211310310030 its reverse (30013013112), we get a palindrome (241323323142).

The spelling of 211310310030 in words is "two hundred eleven billion, three hundred ten million, three hundred ten thousand, thirty".