311213110102 has 16 divisors (see below), whose sum is σ = 472142440080. Its totient is φ = 153832871808.

The previous prime is 311213110093. The next prime is 311213110121. The reversal of 311213110102 is 201011312113.

It is a happy number.

It is a congruent number.

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, 966013 + ... + 1247239.

It is an arithmetic number, because the mean of its divisors is an integer number (29508902505).

Almost surely, 2^311213110102 is an apocalyptic number.

311213110102 is a deficient number, since it is larger than the sum of its proper divisors (160929329978).

311213110102 is a wasteful number, since it uses less digits than its factorization.

311213110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287535.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 311213110102 its reverse (201011312113), we get a palindrome (512224422215).

The spelling of 311213110102 in words is "three hundred eleven billion, two hundred thirteen million, one hundred ten thousand, one hundred two".