210131133012 has 48 divisors (see below), whose sum is σ = 546245071680. Its totient is φ = 69855912864.

The previous prime is 210131132999. The next prime is 210131133041. The reversal of 210131133012 is 210331131012.

210131133012 is a `hidden beast` number, since 2 + 10 + 1 + 311 + 330 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2567838 + ... + 2648405.

It is an arithmetic number, because the mean of its divisors is an integer number (11380105660).

Almost surely, 2^210131133012 is an apocalyptic number.

It is an amenable number.

210131133012 is an abundant number, since it is smaller than the sum of its proper divisors (336113938668).

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

210131133012 is a wasteful number, since it uses less digits than its factorization.

210131133012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216629 (or 5216621 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 210131133012 its reverse (210331131012), we get a palindrome (420462264024).

The spelling of 210131133012 in words is "two hundred ten billion, one hundred thirty-one million, one hundred thirty-three thousand, twelve".