1021099303008 has 192 divisors, whose sum is σ = 3022891280640. Its totient is φ = 335297664000.

The previous prime is 1021099302991. The next prime is 1021099303031. The reversal of 1021099303008 is 8003039901201.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 15473283 + ... + 15539133.

It is an arithmetic number, because the mean of its divisors is an integer number (15744225420).

Almost surely, 2^{1021099303008} is an apocalyptic number.

1021099303008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021099303008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1511445640320).

1021099303008 is an abundant number, since it is smaller than the sum of its proper divisors (2001791977632).

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

1021099303008 is a wasteful number, since it uses less digits than its factorization.

1021099303008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66138 (or 66124 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 1021099303008 in words is "one trillion, twenty-one billion, ninety-nine million, three hundred three thousand, eight".