131044111021 has 8 divisors (see below), whose sum is σ = 135580730400. Its totient is φ = 126508682160.

The previous prime is 131044111007. The next prime is 131044111031. The reversal of 131044111021 is 120111440131.

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

It is a cyclic number.

It is not a de Polignac number, because 131044111021 - 2³¹ = 128896627373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131044111021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131044111031) 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, 70731 + ... + 516808.

It is an arithmetic number, because the mean of its divisors is an integer number (16947591300).

Almost surely, 2^131044111021 is an apocalyptic number.

It is an amenable number.

131044111021 is a deficient number, since it is larger than the sum of its proper divisors (4536619379).

131044111021 is an equidigital number, since it uses as much as digits as its factorization.

131044111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595259.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 131044111021 its reverse (120111440131), we get a palindrome (251155551152).

The spelling of 131044111021 in words is "one hundred thirty-one billion, forty-four million, one hundred eleven thousand, twenty-one".