1020201009973 has 12 divisors (see below), whose sum is σ = 1079340452640. Its totient is φ = 962476596576.

The previous prime is 1020201009917. The next prime is 1020201010007. The reversal of 1020201009973 is 3799001020201.

It is a happy number.

It is not a de Polignac number, because 1020201009973 - 2⁹ = 1020201009461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020201009073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4039243 + ... + 4284376.

It is an arithmetic number, because the mean of its divisors is an integer number (89945037720).

Almost surely, 2^{1020201009973} is an apocalyptic number.

It is an amenable number.

1020201009973 is a deficient number, since it is larger than the sum of its proper divisors (59139442667).

1020201009973 is an frugal number, since it uses more digits than its factorization.

1020201009973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323788 (or 8323715 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The spelling of 1020201009973 in words is "one trillion, twenty billion, two hundred one million, nine thousand, nine hundred seventy-three".