1131201324142 has 4 divisors (see below), whose sum is σ = 1696801986216. Its totient is φ = 565600662070.

The previous prime is 1131201324139. The next prime is 1131201324163. The reversal of 1131201324142 is 2414231021311.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1131201324142² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 282800331034 + ... + 282800331037.

It is an arithmetic number, because the mean of its divisors is an integer number (424200496554).

Almost surely, 2^{1131201324142} is an apocalyptic number.

1131201324142 is a deficient number, since it is larger than the sum of its proper divisors (565600662074).

1131201324142 is an equidigital number, since it uses as much as digits as its factorization.

1131201324142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565600662073.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1131201324142 its reverse (2414231021311), we get a palindrome (3545432345453).

The spelling of 1131201324142 in words is "one trillion, one hundred thirty-one billion, two hundred one million, three hundred twenty-four thousand, one hundred forty-two".