31103132223211 has 4 divisors (see below), whose sum is σ = 31233270852000. Its totient is φ = 30972993594424.

The previous prime is 31103132223187. The next prime is 31103132223257. The reversal of 31103132223211 is 11232223130113.

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 31103132223211 - 2¹³ = 31103132215019 is a prime.

It is a super-3 number, since 3×31103132223211³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103132223281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65069314036 + ... + 65069314513.

It is an arithmetic number, because the mean of its divisors is an integer number (7808317713000).

Almost surely, 2^{31103132223211} is an apocalyptic number.

31103132223211 is a deficient number, since it is larger than the sum of its proper divisors (130138628789).

31103132223211 is a wasteful number, since it uses less digits than its factorization.

31103132223211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130138628788.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31103132223211 its reverse (11232223130113), we get a palindrome (42335355353324).

The spelling of 31103132223211 in words is "thirty-one trillion, one hundred three billion, one hundred thirty-two million, two hundred twenty-three thousand, two hundred eleven".