1201200001131 has 16 divisors (see below), whose sum is σ = 1729770626304. Its totient is φ = 737069733024.

The previous prime is 1201200001109. The next prime is 1201200001139. The reversal of 1201200001131 is 1311000021021.

It is not a de Polignac number, because 1201200001131 - 2⁹ = 1201200000619 is a prime.

It is a super-2 number, since 2×1201200001131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201200001139) 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, 44366871 + ... + 44393936.

It is an arithmetic number, because the mean of its divisors is an integer number (108110664144).

Almost surely, 2^{1201200001131} is an apocalyptic number.

1201200001131 is a deficient number, since it is larger than the sum of its proper divisors (528570625173).

1201200001131 is a wasteful number, since it uses less digits than its factorization.

1201200001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88761170.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1201200001131 its reverse (1311000021021), we get a palindrome (2512200022152).

The spelling of 1201200001131 in words is "one trillion, two hundred one billion, two hundred million, one thousand, one hundred thirty-one".