643114311102 has 48 divisors (see below), whose sum is σ = 1412709113088. Its totient is φ = 211412193360.

The previous prime is 643114311097. The next prime is 643114311139. The reversal of 643114311102 is 201113411346.

643114311102 is a `hidden beast` number, since 643 + 1 + 1 + 4 + 3 + 1 + 1 + 10 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458827 + ... + 1223417.

It is an arithmetic number, because the mean of its divisors is an integer number (29431439856).

Almost surely, 2^643114311102 is an apocalyptic number.

643114311102 is an abundant number, since it is smaller than the sum of its proper divisors (769594801986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

643114311102 is a wasteful number, since it uses less digits than its factorization.

643114311102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765245 (or 765242 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 643114311102 its reverse (201113411346), we get a palindrome (844227722448).

The spelling of 643114311102 in words is "six hundred forty-three billion, one hundred fourteen million, three hundred eleven thousand, one hundred two".