131021001311 has 8 divisors (see below), whose sum is σ = 133272730800. Its totient is φ = 128777983488.

The previous prime is 131021001299. The next prime is 131021001317. The reversal of 131021001311 is 113100120131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131021001311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021001317) 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, 2147576 + ... + 2207741.

It is an arithmetic number, because the mean of its divisors is an integer number (16659091350).

Almost surely, 2^131021001311 is an apocalyptic number.

131021001311 is a deficient number, since it is larger than the sum of its proper divisors (2251729489).

131021001311 is an equidigital number, since it uses as much as digits as its factorization.

131021001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355833.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 131021001311 its reverse (113100120131), we get a palindrome (244121121442).

The spelling of 131021001311 in words is "one hundred thirty-one billion, twenty-one million, one thousand, three hundred eleven".