211703631006 has 32 divisors (see below), whose sum is σ = 483907737600. Its totient is φ = 60485036256.

The previous prime is 211703630981. The next prime is 211703631019. The reversal of 211703631006 is 600136307112.

It is a super-2 number, since 2×211703631006² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2614480 + ... + 2694236.

It is an arithmetic number, because the mean of its divisors is an integer number (15122116800).

Almost surely, 2^211703631006 is an apocalyptic number.

211703631006 is an abundant number, since it is smaller than the sum of its proper divisors (272204106594).

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

211703631006 is a wasteful number, since it uses less digits than its factorization.

211703631006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142968.

The product of its (nonzero) digits is 4536, while the sum is 30.

Adding to 211703631006 its reverse (600136307112), we get a palindrome (811839938118).

The spelling of 211703631006 in words is "two hundred eleven billion, seven hundred three million, six hundred thirty-one thousand, six".