1233020012011 has 4 divisors (see below), whose sum is σ = 1233030401512. Its totient is φ = 1233009622512.

The previous prime is 1233020012009. The next prime is 1233020012041. The reversal of 1233020012011 is 1102100203321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1233020012011 - 2¹ = 1233020012009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233020012041) 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, 5014650 + ... + 5254783.

It is an arithmetic number, because the mean of its divisors is an integer number (308257600378).

Almost surely, 2^{1233020012011} is an apocalyptic number.

1233020012011 is a deficient number, since it is larger than the sum of its proper divisors (10389501).

1233020012011 is a wasteful number, since it uses less digits than its factorization.

1233020012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10389500.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1233020012011 its reverse (1102100203321), we get a palindrome (2335120215332).

The spelling of 1233020012011 in words is "one trillion, two hundred thirty-three billion, twenty million, twelve thousand, eleven".