131023320101 has 4 divisors (see below), whose sum is σ = 133244054400. Its totient is φ = 128802585804.

The previous prime is 131023320061. The next prime is 131023320121. The reversal of 131023320101 is 101023320131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131023320101 - 2³⁰ = 129949578277 is a prime.

It is a super-2 number, since 2×131023320101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131023320101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023320121) 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, 1110367061 + ... + 1110367178.

It is an arithmetic number, because the mean of its divisors is an integer number (33311013600).

Almost surely, 2^131023320101 is an apocalyptic number.

It is an amenable number.

131023320101 is a deficient number, since it is larger than the sum of its proper divisors (2220734299).

131023320101 is an equidigital number, since it uses as much as digits as its factorization.

131023320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220734298.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131023320101 its reverse (101023320131), we get a palindrome (232046640232).

The spelling of 131023320101 in words is "one hundred thirty-one billion, twenty-three million, three hundred twenty thousand, one hundred one".