1012321012 has 12 divisors (see below), whose sum is σ = 1772015140. Its totient is φ = 506030976.

The previous prime is 1012321001. The next prime is 1012321031. The reversal of 1012321012 is 2101232101.

1012321012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 909987556 + 102333456 = 30166^2 + 10116^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1012320983 and 1012321001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13587 + ... + 47002.

Almost surely, 2^1012321012 is an apocalyptic number.

It is an amenable number.

1012321012 is a deficient number, since it is larger than the sum of its proper divisors (759694128).

1012321012 is a wasteful number, since it uses less digits than its factorization.

1012321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64770 (or 64768 counting only the distinct ones).

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

The square root of 1012321012 is about 31816.9925040064. The cubic root of 1012321012 is about 1004.0902510363.

Adding to 1012321012 its reverse (2101232101), we get a palindrome (3113553113).

It can be divided in two parts, 101232101 and 2, that multiplied together give a palindrome (202464202).

The spelling of 1012321012 in words is "one billion, twelve million, three hundred twenty-one thousand, twelve".