1021303412 has 12 divisors (see below), whose sum is σ = 1788063396. Its totient is φ = 510428160.

The previous prime is 1021303403. The next prime is 1021303427. The reversal of 1021303412 is 2143031201.

It can be written as a sum of positive squares in 2 ways, for example, as 580135396 + 441168016 = 24086^2 + 21004^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45389 + ... + 64052.

It is an arithmetic number, because the mean of its divisors is an integer number (149005283).

Almost surely, 2^1021303412 is an apocalyptic number.

It is an amenable number.

1021303412 is a deficient number, since it is larger than the sum of its proper divisors (766759984).

1021303412 is a wasteful number, since it uses less digits than its factorization.

1021303412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111778 (or 111776 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021303412 is about 31957.8380370137. The cubic root of 1021303412 is about 1007.0512996412.

Adding to 1021303412 its reverse (2143031201), we get a palindrome (3164334613).

The spelling of 1021303412 in words is "one billion, twenty-one million, three hundred three thousand, four hundred twelve".