1020243412 has 6 divisors (see below), whose sum is σ = 1785425978. Its totient is φ = 510121704.

The previous prime is 1020243409. The next prime is 1020243421. The reversal of 1020243412 is 2143420201.

It can be written as a sum of positive squares in only one way, i.e., 847741456 + 172501956 = 29116^2 + 13134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020243412.

It is a congruent number.

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, 127530423 + ... + 127530430.

Almost surely, 2^1020243412 is an apocalyptic number.

It is an amenable number.

1020243412 is a deficient number, since it is larger than the sum of its proper divisors (765182566).

1020243412 is a wasteful number, since it uses less digits than its factorization.

1020243412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255060857 (or 255060855 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1020243412 is about 31941.2493806989. The cubic root of 1020243412 is about 1006.7027764094.

Adding to 1020243412 its reverse (2143420201), we get a palindrome (3163663613).

The spelling of 1020243412 in words is "one billion, twenty million, two hundred forty-three thousand, four hundred twelve".