1131522143142 has 16 divisors (see below), whose sum is σ = 2264841794880. Its totient is φ = 376874462952.

The previous prime is 1131522143123. The next prime is 1131522143149. The reversal of 1131522143142 is 2413412251311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131522143149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74888008 + ... + 74903115.

It is an arithmetic number, because the mean of its divisors is an integer number (141552612180).

Almost surely, 2^{1131522143142} is an apocalyptic number.

1131522143142 is an abundant number, since it is smaller than the sum of its proper divisors (1133319651738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131522143142 is a wasteful number, since it uses less digits than its factorization.

1131522143142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149792387.

The product of its digits is 5760, while the sum is 30.

Adding to 1131522143142 its reverse (2413412251311), we get a palindrome (3544934394453).

The spelling of 1131522143142 in words is "one trillion, one hundred thirty-one billion, five hundred twenty-two million, one hundred forty-three thousand, one hundred forty-two".