1131243151101 has 16 divisors (see below), whose sum is σ = 1732824219648. Its totient is φ = 643040233200.

The previous prime is 1131243151057. The next prime is 1131243151117. The reversal of 1131243151101 is 1011513421311.

It is a happy number.

It is not a de Polignac number, because 1131243151101 - 2¹⁰ = 1131243150077 is a prime.

It is a super-2 number, since 2×1131243151101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131243151121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141013585 + ... + 141021606.

It is an arithmetic number, because the mean of its divisors is an integer number (108301513728).

Almost surely, 2^{1131243151101} is an apocalyptic number.

It is an amenable number.

1131243151101 is a deficient number, since it is larger than the sum of its proper divisors (601581068547).

1131243151101 is a wasteful number, since it uses less digits than its factorization.

1131243151101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282035392.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 1131243151101 its reverse (1011513421311), we get a palindrome (2142756572412).

The spelling of 1131243151101 in words is "one trillion, one hundred thirty-one billion, two hundred forty-three million, one hundred fifty-one thousand, one hundred one".