131023121001 has 8 divisors (see below), whose sum is σ = 176908855680. Its totient is φ = 86243066832.

The previous prime is 131023120981. The next prime is 131023121023. The reversal of 131023121001 is 100121320131.

It is a happy number.

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

It is not a de Polignac number, because 131023121001 - 2¹⁵ = 131023088233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131023121081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276419850 + ... + 276420323.

It is an arithmetic number, because the mean of its divisors is an integer number (22113606960).

Almost surely, 2^131023121001 is an apocalyptic number.

It is an amenable number.

131023121001 is a deficient number, since it is larger than the sum of its proper divisors (45885734679).

131023121001 is an equidigital number, since it uses as much as digits as its factorization.

131023121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552840255.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131023121001 its reverse (100121320131), we get a palindrome (231144441132).

The spelling of 131023121001 in words is "one hundred thirty-one billion, twenty-three million, one hundred twenty-one thousand, one".