103211103031 has 4 divisors (see below), whose sum is σ = 103253913864. Its totient is φ = 103168292200.

The previous prime is 103211103007. The next prime is 103211103043. The reversal of 103211103031 is 130301112301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103211103031 - 2⁵ = 103211102999 is a prime.

It is a super-2 number, since 2×103211103031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103211102996 and 103211103014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103211103731) 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, 21401800 + ... + 21406621.

It is an arithmetic number, because the mean of its divisors is an integer number (25813478466).

Almost surely, 2^103211103031 is an apocalyptic number.

103211103031 is a deficient number, since it is larger than the sum of its proper divisors (42810833).

103211103031 is an equidigital number, since it uses as much as digits as its factorization.

103211103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42810832.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 103211103031 its reverse (130301112301), we get a palindrome (233512215332).

The spelling of 103211103031 in words is "one hundred three billion, two hundred eleven million, one hundred three thousand, thirty-one".