1201133011001 has 16 divisors (see below), whose sum is σ = 1498356538368. Its totient is φ = 935422765200.

The previous prime is 1201133010997. The next prime is 1201133011009. The reversal of 1201133011001 is 1001103311021.

It is a happy number.

It is not a de Polignac number, because 1201133011001 - 2² = 1201133010997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201133011009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4237115 + ... + 4511696.

It is an arithmetic number, because the mean of its divisors is an integer number (93647283648).

Almost surely, 2^{1201133011001} is an apocalyptic number.

1201133011001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201133011001 is a deficient number, since it is larger than the sum of its proper divisors (297223527367).

1201133011001 is a wasteful number, since it uses less digits than its factorization.

1201133011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8750612.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1201133011001 its reverse (1001103311021), we get a palindrome (2202236322022).

The spelling of 1201133011001 in words is "one trillion, two hundred one billion, one hundred thirty-three million, eleven thousand, one".