2131012 has 24 divisors (see below), whose sum is σ = 4064256. Its totient is φ = 971808.

The previous prime is 2130979. The next prime is 2131013. The reversal of 2131012 is 2101312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131012.

It is not an unprimeable number, because it can be changed into a prime (2131013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5373 + ... + 5755.

It is an arithmetic number, because the mean of its divisors is an integer number (169344).

2^2131012 is an apocalyptic number.

It is an amenable number.

2131012 is a deficient number, since it is larger than the sum of its proper divisors (1933244).

2131012 is a wasteful number, since it uses less digits than its factorization.

2131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2131012 is about 1459.7986162481. The cubic root of 2131012 is about 128.6852088621.

Adding to 2131012 its reverse (2101312), we get a palindrome (4232324).

It can be divided in two parts, 213 and 1012, that added together give a triangular number (1225 = T₄₉).

The spelling of 2131012 in words is "two million, one hundred thirty-one thousand, twelve".