1131200323401 has 16 divisors (see below), whose sum is σ = 1513503645696. Its totient is φ = 751515578496.

The previous prime is 1131200323399. The next prime is 1131200323423. The reversal of 1131200323401 is 1043230021311.

It is not a de Polignac number, because 1131200323401 - 2¹ = 1131200323399 is a prime.

It is a super-2 number, since 2×1131200323401² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131200323601) 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 15 ways as a sum of consecutive naturals, for example, 22752696 + ... + 22802358.

It is an arithmetic number, because the mean of its divisors is an integer number (94593977856).

Almost surely, 2^{1131200323401} is an apocalyptic number.

It is an amenable number.

1131200323401 is a deficient number, since it is larger than the sum of its proper divisors (382303322295).

1131200323401 is a wasteful number, since it uses less digits than its factorization.

1131200323401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75872.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1131200323401 its reverse (1043230021311), we get a palindrome (2174430344712).

The spelling of 1131200323401 in words is "one trillion, one hundred thirty-one billion, two hundred million, three hundred twenty-three thousand, four hundred one".