1201121213013 has 12 divisors (see below), whose sum is σ = 1735676092800. Its totient is φ = 800413677096.

The previous prime is 1201121213003. The next prime is 1201121213101. The reversal of 1201121213013 is 3103121211021.

It is not a de Polignac number, because 1201121213013 - 2⁴ = 1201121212997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201121213003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27793731 + ... + 27836912.

It is an arithmetic number, because the mean of its divisors is an integer number (144639674400).

Almost surely, 2^{1201121213013} is an apocalyptic number.

It is an amenable number.

1201121213013 is a deficient number, since it is larger than the sum of its proper divisors (534554879787).

1201121213013 is a wasteful number, since it uses less digits than its factorization.

1201121213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55633048 (or 55633045 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1201121213013 its reverse (3103121211021), we get a palindrome (4304242424034).

The spelling of 1201121213013 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred thirteen thousand, thirteen".