1131243433122 has 24 divisors (see below), whose sum is σ = 2486865730608. Its totient is φ = 342801040120.

The previous prime is 1131243433081. The next prime is 1131243433153. The reversal of 1131243433122 is 2213343421311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131243433122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779092548 + ... + 779093999.

It is an arithmetic number, because the mean of its divisors is an integer number (103619405442).

Almost surely, 2^{1131243433122} is an apocalyptic number.

1131243433122 is an abundant number, since it is smaller than the sum of its proper divisors (1355622297486).

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

1131243433122 is a wasteful number, since it uses less digits than its factorization.

1131243433122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558186574 (or 1558186563 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

Adding to 1131243433122 its reverse (2213343421311), we get a palindrome (3344586854433).

It can be divided in two parts, 11312 and 43433122, that added together give a palindrome (43444434).

The spelling of 1131243433122 in words is "one trillion, one hundred thirty-one billion, two hundred forty-three million, four hundred thirty-three thousand, one hundred twenty-two".