1020002012 has 6 divisors (see below), whose sum is σ = 1785003528. Its totient is φ = 510001004.

The previous prime is 1020001991. The next prime is 1020002017. The reversal of 1020002012 is 2102000201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020002017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127500248 + ... + 127500255.

It is an arithmetic number, because the mean of its divisors is an integer number (297500588).

Almost surely, 2^1020002012 is an apocalyptic number.

It is an amenable number.

1020002012 is a deficient number, since it is larger than the sum of its proper divisors (765001516).

1020002012 is a wasteful number, since it uses less digits than its factorization.

1020002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255000507 (or 255000505 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1020002012 is about 31937.4703444089. The cubic root of 1020002012 is about 1006.6233714306.

Adding to 1020002012 its reverse (2102000201), we get a palindrome (3122002213).

It can be divided in two parts, 102000201 and 2, that multiplied together give a palindrome (204000402).

The spelling of 1020002012 in words is "one billion, twenty million, two thousand, twelve".