311111020204 has 24 divisors (see below), whose sum is σ = 548806104000. Its totient is φ = 154310167440.

The previous prime is 311111020163. The next prime is 311111020229. The reversal of 311111020204 is 402020111113.

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, 1304287 + ... + 1524265.

It is an arithmetic number, because the mean of its divisors is an integer number (22866921000).

Almost surely, 2^311111020204 is an apocalyptic number.

It is an amenable number.

311111020204 is a deficient number, since it is larger than the sum of its proper divisors (237695083796).

311111020204 is a wasteful number, since it uses less digits than its factorization.

311111020204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222813 (or 222811 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 311111020204 its reverse (402020111113), we get a palindrome (713131131317).

Subtracting 311111020204 from its reverse (402020111113), we obtain a palindrome (90909090909).

The spelling of 311111020204 in words is "three hundred eleven billion, one hundred eleven million, twenty thousand, two hundred four".