20121033033203 has 2 divisors, whose sum is σ = 20121033033204. Its totient is φ = 20121033033202.

The previous prime is 20121033033193. The next prime is 20121033033247. The reversal of 20121033033203 is 30233033012102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20121033033203 - 2¹² = 20121033029107 is a prime.

It is not a weakly prime, because it can be changed into another prime (20121033033263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060516516601 + 10060516516602.

It is an arithmetic number, because the mean of its divisors is an integer number (10060516516602).

Almost surely, 2^{20121033033203} is an apocalyptic number.

20121033033203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121033033203 is an equidigital number, since it uses as much as digits as its factorization.

20121033033203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20121033033203 its reverse (30233033012102), we get a palindrome (50354066045305).

The spelling of 20121033033203 in words is "twenty trillion, one hundred twenty-one billion, thirty-three million, thirty-three thousand, two hundred three".