1021300002 has 80 divisors (see below), whose sum is σ = 2338207872. Its totient is φ = 333123840.

The previous prime is 1021300001. The next prime is 1021300043. The reversal of 1021300002 is 2000031201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1021300001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1618227 + ... + 1618857.

Almost surely, 2^1021300002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021300002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169103936).

1021300002 is an abundant number, since it is smaller than the sum of its proper divisors (1316907870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021300002 is a wasteful number, since it uses less digits than its factorization.

1021300002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1021300002 is about 31957.7846854252. The cubic root of 1021300002 is about 1007.0501788353.

Adding to 1021300002 its reverse (2000031201), we get a palindrome (3021331203).

The spelling of 1021300002 in words is "one billion, twenty-one million, three hundred thousand, two".