1131202021113 has 12 divisors (see below), whose sum is σ = 1633968828388. Its totient is φ = 754129902240.

The previous prime is 1131202021091. The next prime is 1131202021153. The reversal of 1131202021113 is 3111202021311.

It can be written as a sum of positive squares in 2 ways, for example, as 1044467648064 + 86734373049 = 1021992^2 + 294507^2 .

It is not a de Polignac number, because 1131202021113 - 2¹³ = 1131202012921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131202021153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1662123 + ... + 2241663.

Almost surely, 2^{1131202021113} is an apocalyptic number.

It is an amenable number.

1131202021113 is a deficient number, since it is larger than the sum of its proper divisors (502766807275).

1131202021113 is a wasteful number, since it uses less digits than its factorization.

1131202021113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796424 (or 796421 counting only the distinct ones).

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

Adding to 1131202021113 its reverse (3111202021311), we get a palindrome (4242404042424).

The spelling of 1131202021113 in words is "one trillion, one hundred thirty-one billion, two hundred two million, twenty-one thousand, one hundred thirteen".