20021101011203 has 8 divisors (see below), whose sum is σ = 20895461941248. Its totient is φ = 19147063270984.

The previous prime is 20021101011199. The next prime is 20021101011221. The reversal of 20021101011203 is 30211010112002.

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 20021101011203 - 2² = 20021101011199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021101811203) 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, 80670851 + ... + 80918652.

It is an arithmetic number, because the mean of its divisors is an integer number (2611932742656).

Almost surely, 2^{20021101011203} is an apocalyptic number.

20021101011203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20021101011203 is a deficient number, since it is larger than the sum of its proper divisors (874360930045).

20021101011203 is a wasteful number, since it uses less digits than its factorization.

20021101011203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161594913.

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

Adding to 20021101011203 its reverse (30211010112002), we get a palindrome (50232111123205).

The spelling of 20021101011203 in words is "twenty trillion, twenty-one billion, one hundred one million, eleven thousand, two hundred three".