1201233033331 has 4 divisors (see below), whose sum is σ = 1203740827200. Its totient is φ = 1198725239464.

The previous prime is 1201233033323. The next prime is 1201233033361. The reversal of 1201233033331 is 1333303321021.

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 1201233033331 - 2³ = 1201233033323 is a prime.

It is a super-2 number, since 2×1201233033331² (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 = 1201233033296 and 1201233033305.

It is not an unprimeable number, because it can be changed into a prime (1201233033311) 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, 1253896216 + ... + 1253897173.

It is an arithmetic number, because the mean of its divisors is an integer number (300935206800).

Almost surely, 2^{1201233033331} is an apocalyptic number.

1201233033331 is a deficient number, since it is larger than the sum of its proper divisors (2507793869).

1201233033331 is an equidigital number, since it uses as much as digits as its factorization.

1201233033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507793868.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1201233033331 its reverse (1333303321021), we get a palindrome (2534536354352).

The spelling of 1201233033331 in words is "one trillion, two hundred one billion, two hundred thirty-three million, thirty-three thousand, three hundred thirty-one".