11311143201 has 24 divisors (see below), whose sum is σ = 16850221440. Its totient is φ = 7306207776.

The previous prime is 11311143167. The next prime is 11311143223. The reversal of 11311143201 is 10234111311.

It is a happy number.

11311143201 is a `hidden beast` number, since 11 + 311 + 143 + 201 = 666.

It is not a de Polignac number, because 11311143201 - 2³¹ = 9163659553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11311143301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8526 + ... + 150648.

It is an arithmetic number, because the mean of its divisors is an integer number (702092560).

Almost surely, 2^11311143201 is an apocalyptic number.

It is an amenable number.

11311143201 is a deficient number, since it is larger than the sum of its proper divisors (5539078239).

11311143201 is a wasteful number, since it uses less digits than its factorization.

11311143201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142405 (or 142402 counting only the distinct ones).

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

Adding to 11311143201 its reverse (10234111311), we get a palindrome (21545254512).

The spelling of 11311143201 in words is "eleven billion, three hundred eleven million, one hundred forty-three thousand, two hundred one".