1021312010 has 16 divisors (see below), whose sum is σ = 1918290816. Its totient is φ = 390762768.

The previous prime is 1021311983. The next prime is 1021312027. The reversal of 1021312010 is 102131201.

It is a junction number, because it is equal to n+sod(n) for n = 1021311982 and 1021312000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220014 + ... + 2220473.

It is an arithmetic number, because the mean of its divisors is an integer number (119893176).

Almost surely, 2^1021312010 is an apocalyptic number.

1021312010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021312010 is a deficient number, since it is larger than the sum of its proper divisors (896978806).

1021312010 is a wasteful number, since it uses less digits than its factorization.

1021312010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440517.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1021312010 is about 31957.9725577202. The cubic root of 1021312010 is about 1007.0541256388.

Adding to 1021312010 its reverse (102131201), we get a palindrome (1123443211).

The spelling of 1021312010 in words is "one billion, twenty-one million, three hundred twelve thousand, ten".