1011002021203 has 8 divisors (see below), whose sum is σ = 1035805211280. Its totient is φ = 986205717120.

The previous prime is 1011002021137. The next prime is 1011002021207. The reversal of 1011002021203 is 3021202001101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011002021203 - 2¹³ = 1011002013011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011002021207) 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, 1423633 + ... + 2012146.

It is an arithmetic number, because the mean of its divisors is an integer number (129475651410).

Almost surely, 2^{1011002021203} is an apocalyptic number.

1011002021203 is a deficient number, since it is larger than the sum of its proper divisors (24803190077).

1011002021203 is an equidigital number, since it uses as much as digits as its factorization.

1011002021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442997.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1011002021203 its reverse (3021202001101), we get a palindrome (4032204022304).

The spelling of 1011002021203 in words is "one trillion, eleven billion, two million, twenty-one thousand, two hundred three".