11311135401261 has 24 divisors (see below), whose sum is σ = 16024196253856. Its totient is φ = 7094653647840.

The previous prime is 11311135401221. The next prime is 11311135401271. The reversal of 11311135401261 is 16210453111311.

It is not a de Polignac number, because 11311135401261 - 2³³ = 11302545466669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311135401221) 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 23 ways as a sum of consecutive naturals, for example, 58324255 + ... + 58517868.

Almost surely, 2^{11311135401261} is an apocalyptic number.

It is an amenable number.

11311135401261 is a deficient number, since it is larger than the sum of its proper divisors (4713060852595).

11311135401261 is a wasteful number, since it uses less digits than its factorization.

11311135401261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116842233 (or 116842210 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

Adding to 11311135401261 its reverse (16210453111311), we get a palindrome (27521588512572).

The spelling of 11311135401261 in words is "eleven trillion, three hundred eleven billion, one hundred thirty-five million, four hundred one thousand, two hundred sixty-one".