1020403612 has 12 divisors (see below), whose sum is σ = 1833968920. Its totient is φ = 496412496.

The previous prime is 1020403591. The next prime is 1020403627. The reversal of 1020403612 is 2163040201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020403612.

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, 3447162 + ... + 3447457.

Almost surely, 2^1020403612 is an apocalyptic number.

It is an amenable number.

1020403612 is a deficient number, since it is larger than the sum of its proper divisors (813565308).

1020403612 is a wasteful number, since it uses less digits than its factorization.

1020403612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894660 (or 6894658 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1020403612 is about 31943.7570113473. The cubic root of 1020403612 is about 1006.7554649288.

Adding to 1020403612 its reverse (2163040201), we get a palindrome (3183443813).

The spelling of 1020403612 in words is "one billion, twenty million, four hundred three thousand, six hundred twelve".