311440103223403 has 48 divisors (see below), whose sum is σ = 405982087978464. Its totient is φ = 236076464010240.

The previous prime is 311440103223391. The next prime is 311440103223407. The reversal of 311440103223403 is 304322301044113.

It is not a de Polignac number, because 311440103223403 - 2¹⁷ = 311440103092331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311440103223407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102869601 + ... + 105853837.

It is an arithmetic number, because the mean of its divisors is an integer number (8457960166218).

Almost surely, 2^{311440103223403} is an apocalyptic number.

311440103223403 is a deficient number, since it is larger than the sum of its proper divisors (94541984755061).

311440103223403 is a wasteful number, since it uses less digits than its factorization.

311440103223403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989532 (or 2989525 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 311440103223403 its reverse (304322301044113), we get a palindrome (615762404267516).

The spelling of 311440103223403 in words is "three hundred eleven trillion, four hundred forty billion, one hundred three million, two hundred twenty-three thousand, four hundred three".