311243104402 has 16 divisors (see below), whose sum is σ = 510273326592. Its totient is φ = 141742589760.

The previous prime is 311243104343. The next prime is 311243104457. The reversal of 311243104402 is 204401342113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147647478 + ... + 147649585.

It is an arithmetic number, because the mean of its divisors is an integer number (31892082912).

Almost surely, 2^311243104402 is an apocalyptic number.

311243104402 is a deficient number, since it is larger than the sum of its proper divisors (199030222190).

311243104402 is a wasteful number, since it uses less digits than its factorization.

311243104402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295297113.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 311243104402 its reverse (204401342113), we get a palindrome (515644446515).

The spelling of 311243104402 in words is "three hundred eleven billion, two hundred forty-three million, one hundred four thousand, four hundred two".