1131311233301 has 4 divisors (see below), whose sum is σ = 1131318583692. Its totient is φ = 1131303882912.

The previous prime is 1131311233271. The next prime is 1131311233313. The reversal of 1131311233301 is 1033321131311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 484034667076 + 647276566225 = 695726^2 + 804535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131311233301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131311203301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3439280 + ... + 3753833.

It is an arithmetic number, because the mean of its divisors is an integer number (282829645923).

Almost surely, 2^{1131311233301} is an apocalyptic number.

It is an amenable number.

1131311233301 is a deficient number, since it is larger than the sum of its proper divisors (7350391).

1131311233301 is an equidigital number, since it uses as much as digits as its factorization.

1131311233301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350390.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1131311233301 its reverse (1033321131311), we get a palindrome (2164632364612).

The spelling of 1131311233301 in words is "one trillion, one hundred thirty-one billion, three hundred eleven million, two hundred thirty-three thousand, three hundred one".