131013001 has 4 divisors (see below), whose sum is σ = 149729152. Its totient is φ = 112296852.

The previous prime is 131012993. The next prime is 131013011. The reversal of 131013001 is 100310131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100310131 = 3209 ⋅31259.

It is a cyclic number.

It is not a de Polignac number, because 131013001 - 2³ = 131012993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131013011) 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, 9358065 + ... + 9358078.

It is an arithmetic number, because the mean of its divisors is an integer number (37432288).

Almost surely, 2^131013001 is an apocalyptic number.

It is an amenable number.

131013001 is a deficient number, since it is larger than the sum of its proper divisors (18716151).

131013001 is an equidigital number, since it uses as much as digits as its factorization.

131013001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18716150.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 131013001 is about 11446.0910794908. The cubic root of 131013001 is about 507.8921084964.

Adding to 131013001 its reverse (100310131), we get a palindrome (231323132).

The spelling of 131013001 in words is "one hundred thirty-one million, thirteen thousand, one".