2031311140166 has 64 divisors (see below), whose sum is σ = 4024966464000. Its totient is φ = 744367464960.

The previous prime is 2031311140163. The next prime is 2031311140171. The reversal of 2031311140166 is 6610411131302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031311140163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3665576 + ... + 4183188.

It is an arithmetic number, because the mean of its divisors is an integer number (62890101000).

Almost surely, 2^{2031311140166} is an apocalyptic number.

2031311140166 is a deficient number, since it is larger than the sum of its proper divisors (1993655323834).

2031311140166 is a wasteful number, since it uses less digits than its factorization.

2031311140166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519149.

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 2031311140166 its reverse (6610411131302), we get a palindrome (8641722271468).

The spelling of 2031311140166 in words is "two trillion, thirty-one billion, three hundred eleven million, one hundred forty thousand, one hundred sixty-six".