1021070651603 has 16 divisors (see below), whose sum is σ = 1039903349760. Its totient is φ = 1002398716800.

The previous prime is 1021070651599. The next prime is 1021070651617. The reversal of 1021070651603 is 3061560701201.

It is a cyclic number.

It is not a de Polignac number, because 1021070651603 - 2² = 1021070651599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021070651603.

It is not an unprimeable number, because it can be changed into a prime (1021070651633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12276788 + ... + 12359678.

It is an arithmetic number, because the mean of its divisors is an integer number (64993959360).

Almost surely, 2^{1021070651603} is an apocalyptic number.

1021070651603 is a deficient number, since it is larger than the sum of its proper divisors (18832698157).

1021070651603 is an equidigital number, since it uses as much as digits as its factorization.

1021070651603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83858.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 1021070651603 in words is "one trillion, twenty-one billion, seventy million, six hundred fifty-one thousand, six hundred three".