103311311231 has 4 divisors (see below), whose sum is σ = 103641379632. Its totient is φ = 102981242832.

The previous prime is 103311311179. The next prime is 103311311251. The reversal of 103311311231 is 132113113301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132113113301 = 13 ⋅10162547177.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103311311231 is a prime.

It is a super-2 number, since 2×103311311231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103311311251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165033731 + ... + 165034356.

It is an arithmetic number, because the mean of its divisors is an integer number (25910344908).

Almost surely, 2^103311311231 is an apocalyptic number.

103311311231 is a deficient number, since it is larger than the sum of its proper divisors (330068401).

103311311231 is an equidigital number, since it uses as much as digits as its factorization.

103311311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330068400.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 103311311231 its reverse (132113113301), we get a palindrome (235424424532).

The spelling of 103311311231 in words is "one hundred three billion, three hundred eleven million, three hundred eleven thousand, two hundred thirty-one".