1311130533242 has 16 divisors (see below), whose sum is σ = 2036746252800. Its totient is φ = 632264745840.

The previous prime is 1311130533241. The next prime is 1311130533277. The reversal of 1311130533242 is 2423350311131.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (1311130533241) 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, 12354242 + ... + 12459917.

It is an arithmetic number, because the mean of its divisors is an integer number (127296640800).

Almost surely, 2^{1311130533242} is an apocalyptic number.

1311130533242 is a deficient number, since it is larger than the sum of its proper divisors (725615719558).

1311130533242 is a wasteful number, since it uses less digits than its factorization.

1311130533242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24815101.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 1311130533242 its reverse (2423350311131), we get a palindrome (3734480844373).

The spelling of 1311130533242 in words is "one trillion, three hundred eleven billion, one hundred thirty million, five hundred thirty-three thousand, two hundred forty-two".