211230331002 has 48 divisors (see below), whose sum is σ = 459025195200. Its totient is φ = 70201230336.

The previous prime is 211230330973. The next prime is 211230331009. The reversal of 211230331002 is 200133032112.

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

It is not an unprimeable number, because it can be changed into a prime (211230331009) 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, 10096749 + ... + 10117647.

It is an arithmetic number, because the mean of its divisors is an integer number (9563024900).

Almost surely, 2^211230331002 is an apocalyptic number.

211230331002 is an abundant number, since it is smaller than the sum of its proper divisors (247794864198).

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

211230331002 is a wasteful number, since it uses less digits than its factorization.

211230331002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22547 (or 22544 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 211230331002 its reverse (200133032112), we get a palindrome (411363363114).

The spelling of 211230331002 in words is "two hundred eleven billion, two hundred thirty million, three hundred thirty-one thousand, two".