311103320231 has 8 divisors (see below), whose sum is σ = 339389616000. Its totient is φ = 282817720440.

The previous prime is 311103320207. The next prime is 311103320249. The reversal of 311103320231 is 132023301113.

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

It is a cyclic number.

It is not a de Polignac number, because 311103320231 - 2²² = 311099125927 is a prime.

It is a super-2 number, since 2×311103320231² (a number of 24 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 (311103320201) 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, 1313870 + ... + 1532468.

It is an arithmetic number, because the mean of its divisors is an integer number (42423702000).

Almost surely, 2^311103320231 is an apocalyptic number.

311103320231 is a deficient number, since it is larger than the sum of its proper divisors (28286295769).

311103320231 is a wasteful number, since it uses less digits than its factorization.

311103320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347989.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 311103320231 its reverse (132023301113), we get a palindrome (443126621344).

The spelling of 311103320231 in words is "three hundred eleven billion, one hundred three million, three hundred twenty thousand, two hundred thirty-one".