31103323311 has 8 divisors (see below), whose sum is σ = 41472503680. Its totient is φ = 20734845912.

The previous prime is 31103323271. The next prime is 31103323333. The reversal of 31103323311 is 11332330113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31103323311 - 2⁷ = 31103323183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103303311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61981 + ... + 256998.

It is an arithmetic number, because the mean of its divisors is an integer number (5184062960).

Almost surely, 2^31103323311 is an apocalyptic number.

31103323311 is a deficient number, since it is larger than the sum of its proper divisors (10369180369).

31103323311 is a wasteful number, since it uses less digits than its factorization.

31103323311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351485.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31103323311 its reverse (11332330113), we get a palindrome (42435653424).

The spelling of 31103323311 in words is "thirty-one billion, one hundred three million, three hundred twenty-three thousand, three hundred eleven".