1302012028 has 24 divisors (see below), whose sum is σ = 2355960320. Its totient is φ = 628950960.

The previous prime is 1302011989. The next prime is 1302012029. The reversal of 1302012028 is 8202102031.

It is a junction number, because it is equal to n+sod(n) for n = 1302011996 and 1302012014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302012029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68275 + ... + 85237.

Almost surely, 2^1302012028 is an apocalyptic number.

It is an amenable number.

1302012028 is a deficient number, since it is larger than the sum of its proper divisors (1053948292).

1302012028 is a wasteful number, since it uses less digits than its factorization.

1302012028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17617 (or 17615 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1302012028 is about 36083.4037751429. The cubic root of 1302012028 is about 1091.9556474537.

Adding to 1302012028 its reverse (8202102031), we get a palindrome (9504114059).

The spelling of 1302012028 in words is "one billion, three hundred two million, twelve thousand, twenty-eight".