1031212012 has 6 divisors (see below), whose sum is σ = 1804621028. Its totient is φ = 515606004.

The previous prime is 1031212009. The next prime is 1031212037. The reversal of 1031212012 is 2102121301.

It is a junction number, because it is equal to n+sod(n) for n = 1031211983 and 1031212001.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 128901498 + ... + 128901505.

Almost surely, 2^1031212012 is an apocalyptic number.

It is an amenable number.

1031212012 is a deficient number, since it is larger than the sum of its proper divisors (773409016).

1031212012 is a wasteful number, since it uses less digits than its factorization.

1031212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257803007 (or 257803005 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1031212012 is about 32112.4899688579. The cubic root of 1031212012 is about 1010.2975994577.

Adding to 1031212012 its reverse (2102121301), we get a palindrome (3133333313).

The spelling of 1031212012 in words is "one billion, thirty-one million, two hundred twelve thousand, twelve".