1000021311010 has 16 divisors (see below), whose sum is σ = 1809364986936. Its totient is φ = 397935940608.

The previous prime is 1000021310993. The next prime is 1000021311013. The reversal of 1000021311010 is 101131200001.

It can be written as a sum of positive squares in 4 ways, for example, as 767970042921 + 232051268089 = 876339^2 + 481717^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1000021311013) 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, 259070949 + ... + 259074808.

Almost surely, 2^{1000021311010} is an apocalyptic number.

1000021311010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000021311010 is a deficient number, since it is larger than the sum of its proper divisors (809343675926).

1000021311010 is a wasteful number, since it uses less digits than its factorization.

1000021311010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518145957.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1000021311010 its reverse (101131200001), we get a palindrome (1101152511011).

The spelling of 1000021311010 in words is "one trillion, twenty-one million, three hundred eleven thousand, ten".