211310031120 has 80 divisors (see below), whose sum is σ = 655120783872. Its totient is φ = 56344207360.

The previous prime is 211310031103. The next prime is 211310031137. The reversal of 211310031120 is 21130013112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211310031103) and next prime (211310031137).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a self number, because there is not a number n which added to its sum of digits gives 211310031120.

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, 3115489 + ... + 3182591.

Almost surely, 2^211310031120 is an apocalyptic number.

211310031120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211310031120 is an abundant number, since it is smaller than the sum of its proper divisors (443810752752).

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

211310031120 is a wasteful number, since it uses less digits than its factorization.

211310031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80240 (or 80234 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 211310031120 its reverse (21130013112), we get a palindrome (232440044232).

The spelling of 211310031120 in words is "two hundred eleven billion, three hundred ten million, thirty-one thousand, one hundred twenty".