2231312012010 has 32 divisors (see below), whose sum is σ = 5950165366080. Its totient is φ = 595016536464.

The previous prime is 2231312011991. The next prime is 2231312012011. The reversal of 2231312012010 is 102102131322.

2231312012010 is a `hidden beast` number, since 2 + 231 + 31 + 201 + 201 + 0 = 666.

It is a super-3 number, since 3×2231312012010³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 (2231312012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4132059012 + ... + 4132059551.

It is an arithmetic number, because the mean of its divisors is an integer number (185942667690).

Almost surely, 2^{2231312012010} is an apocalyptic number.

2231312012010 is an abundant number, since it is smaller than the sum of its proper divisors (3718853354070).

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

2231312012010 is a wasteful number, since it uses less digits than its factorization.

2231312012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8264118579 (or 8264118573 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2231312012010 its reverse (102102131322), we get a palindrome (2333414143332).

The spelling of 2231312012010 in words is "two trillion, two hundred thirty-one billion, three hundred twelve million, twelve thousand, ten".