311221230112102 has 8 divisors (see below), whose sum is σ = 466925006597112. Its totient is φ = 155579561246400.

The previous prime is 311221230112043. The next prime is 311221230112187. The reversal of 311221230112102 is 201211032122113.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15526892299 + ... + 15526912342.

It is an arithmetic number, because the mean of its divisors is an integer number (58365625824639).

Almost surely, 2^{311221230112102} is an apocalyptic number.

311221230112102 is a deficient number, since it is larger than the sum of its proper divisors (155703776485010).

311221230112102 is a wasteful number, since it uses less digits than its factorization.

311221230112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31053809654.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 311221230112102 its reverse (201211032122113), we get a palindrome (512432262234215).

The spelling of 311221230112102 in words is "three hundred eleven trillion, two hundred twenty-one billion, two hundred thirty million, one hundred twelve thousand, one hundred two".