1131345035642 has 4 divisors (see below), whose sum is σ = 1697017553466. Its totient is φ = 565672517820.

The previous prime is 1131345035549. The next prime is 1131345035699. The reversal of 1131345035642 is 2465305431311.

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

It can be written as a sum of positive squares in only one way, i.e., 863061438121 + 268283597521 = 929011^2 + 517961^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1131345035596 and 1131345035605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282836258909 + ... + 282836258912.

Almost surely, 2^{1131345035642} is an apocalyptic number.

1131345035642 is a deficient number, since it is larger than the sum of its proper divisors (565672517824).

1131345035642 is an equidigital number, since it uses as much as digits as its factorization.

1131345035642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565672517823.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 1131345035642 in words is "one trillion, one hundred thirty-one billion, three hundred forty-five million, thirty-five thousand, six hundred forty-two".