1001020010 has 64 divisors (see below), whose sum is σ = 1956122784. Its totient is φ = 367411200.

The previous prime is 1001020003. The next prime is 1001020021. The reversal of 1001020010 is 100201001.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 341917081 + 659102929 = 18491^2 + 25673^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 1001019976 and 1001020003.

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 31 ways as a sum of consecutive naturals, for example, 2171180 + ... + 2171640.

Almost surely, 2^1001020010 is an apocalyptic number.

1001020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001020010 is a deficient number, since it is larger than the sum of its proper divisors (955102774).

1001020010 is a wasteful number, since it uses less digits than its factorization.

1001020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1001020010 is about 31638.9002653379. The cubic root of 1001020010 is about 1000.3398877965.

Adding to 1001020010 its reverse (100201001), we get a palindrome (1101221011).

The spelling of 1001020010 in words is "one billion, one million, twenty thousand, ten".