1211030020033 has 4 divisors (see below), whose sum is σ = 1274768442160. Its totient is φ = 1147291597908.

The previous prime is 1211030020003. The next prime is 1211030020159. The reversal of 1211030020033 is 3300200301121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1211030020033 - 2¹⁷ = 1211029888961 is a prime.

It is a super-2 number, since 2×1211030020033² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211030019989 and 1211030020016.

It is not an unprimeable number, because it can be changed into a prime (1211030020003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31869211035 + ... + 31869211072.

It is an arithmetic number, because the mean of its divisors is an integer number (318692110540).

Almost surely, 2^{1211030020033} is an apocalyptic number.

It is an amenable number.

1211030020033 is a deficient number, since it is larger than the sum of its proper divisors (63738422127).

1211030020033 is an equidigital number, since it uses as much as digits as its factorization.

1211030020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63738422126.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1211030020033 its reverse (3300200301121), we get a palindrome (4511230321154).

The spelling of 1211030020033 in words is "one trillion, two hundred eleven billion, thirty million, twenty thousand, thirty-three".