1230021010 has 8 divisors (see below), whose sum is σ = 2214037836. Its totient is φ = 492008400.

The previous prime is 1230020999. The next prime is 1230021011. The reversal of 1230021010 is 101200321.

It can be written as a sum of positive squares in 2 ways, for example, as 1213755921 + 16265089 = 34839^2 + 4033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 123002101 = 1230021010 / (1 + 2 + 3 + 0 + 0 + 2 + 1 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (1230021011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61501041 + ... + 61501060.

Almost surely, 2^1230021010 is an apocalyptic number.

1230021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230021010 is a deficient number, since it is larger than the sum of its proper divisors (984016826).

1230021010 is a wasteful number, since it uses less digits than its factorization.

1230021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123002108.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1230021010 is about 35071.6553644107. The cubic root of 1230021010 is about 1071.4473701929.

Adding to 1230021010 its reverse (101200321), we get a palindrome (1331221331).

The spelling of 1230021010 in words is "one billion, two hundred thirty million, twenty-one thousand, ten".