131020201123 has 8 divisors (see below), whose sum is σ = 149954074880. Its totient is φ = 112140502920.

The previous prime is 131020201087. The next prime is 131020201133. The reversal of 131020201123 is 321102020131.

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 131020201123 - 2³³ = 122430266531 is a prime.

It is a super-2 number, since 2×131020201123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131020201097 and 131020201106.

It is not an unprimeable number, because it can be changed into a prime (131020201133) 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, 13538703 + ... + 13548376.

It is an arithmetic number, because the mean of its divisors is an integer number (18744259360).

Almost surely, 2^131020201123 is an apocalyptic number.

131020201123 is a deficient number, since it is larger than the sum of its proper divisors (18933873757).

131020201123 is an equidigital number, since it uses as much as digits as its factorization.

131020201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27087777.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131020201123 its reverse (321102020131), we get a palindrome (452122221254).

The spelling of 131020201123 in words is "one hundred thirty-one billion, twenty million, two hundred one thousand, one hundred twenty-three".