103131231011 has 4 divisors (see below), whose sum is σ = 103298381112. Its totient is φ = 102964080912.

The previous prime is 103131231001. The next prime is 103131231029. The reversal of 103131231011 is 110132131301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110132131301 = 359 ⋅306774739.

It is a cyclic number.

It is not a de Polignac number, because 103131231011 - 2¹⁸ = 103130968867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103131231001) 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, 83574125 + ... + 83575358.

It is an arithmetic number, because the mean of its divisors is an integer number (25824595278).

Almost surely, 2^103131231011 is an apocalyptic number.

103131231011 is a deficient number, since it is larger than the sum of its proper divisors (167150101).

103131231011 is an equidigital number, since it uses as much as digits as its factorization.

103131231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167150100.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 103131231011 its reverse (110132131301), we get a palindrome (213263362312).

The spelling of 103131231011 in words is "one hundred three billion, one hundred thirty-one million, two hundred thirty-one thousand, eleven".