103131112001 has 4 divisors (see below), whose sum is σ = 103133474004. Its totient is φ = 103128750000.

The previous prime is 103131111977. The next prime is 103131112009. The reversal of 103131112001 is 100211131301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100211131301 = 3347 ⋅29940583.

It can be written as a sum of positive squares in 2 ways, for example, as 50380047025 + 52751064976 = 224455^2 + 229676^2 .

It is a cyclic number.

It is not a de Polignac number, because 103131112001 - 2¹⁰ = 103131110977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103131112009) 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, 1114250 + ... + 1203251.

It is an arithmetic number, because the mean of its divisors is an integer number (25783368501).

Almost surely, 2^103131112001 is an apocalyptic number.

It is an amenable number.

103131112001 is a deficient number, since it is larger than the sum of its proper divisors (2362003).

103131112001 is an equidigital number, since it uses as much as digits as its factorization.

103131112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362002.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 103131112001 its reverse (100211131301), we get a palindrome (203342243302).

The spelling of 103131112001 in words is "one hundred three billion, one hundred thirty-one million, one hundred twelve thousand, one".