1021100121203 has 8 divisors (see below), whose sum is σ = 1061840897280. Its totient is φ = 980728040320.

The previous prime is 1021100121191. The next prime is 1021100121241. The reversal of 1021100121203 is 3021210011201.

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 1021100121203 - 2¹⁰ = 1021100120179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021100121253) 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, 92168150 + ... + 92179227.

It is an arithmetic number, because the mean of its divisors is an integer number (132730112160).

Almost surely, 2^{1021100121203} is an apocalyptic number.

1021100121203 is a deficient number, since it is larger than the sum of its proper divisors (40740776077).

1021100121203 is a wasteful number, since it uses less digits than its factorization.

1021100121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184347597.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1021100121203 its reverse (3021210011201), we get a palindrome (4042310132404).

The spelling of 1021100121203 in words is "one trillion, twenty-one billion, one hundred million, one hundred twenty-one thousand, two hundred three".