211100031131000 has 64 divisors (see below), whose sum is σ = 538880806769760. Its totient is φ = 76763647680000.

The previous prime is 211100031130981. The next prime is 211100031131089. The reversal of 211100031131000 is 131130001112.

It is a happy number.

It is a super-2 number, since 2×211100031131000² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9595444961 + ... + 9595466960.

Almost surely, 2^{211100031131000} is an apocalyptic number.

211100031131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211100031131000 is an abundant number, since it is smaller than the sum of its proper divisors (327780775638760).

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

211100031131000 is a wasteful number, since it uses less digits than its factorization.

211100031131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19190911953 (or 19190911939 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 211100031131000 its reverse (131130001112), we get a palindrome (211231161132112).

The spelling of 211100031131000 in words is "two hundred eleven trillion, one hundred billion, thirty-one million, one hundred thirty-one thousand".