102124124020542 has 128 divisors (see below), whose sum is σ = 235167801523200. Its totient is φ = 29479948797312.

The previous prime is 102124124020453. The next prime is 102124124020577. The reversal of 102124124020542 is 245020421421201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23817808 + ... + 27776540.

It is an arithmetic number, because the mean of its divisors is an integer number (1837248449400).

Almost surely, 2^{102124124020542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102124124020542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117583900761600).

102124124020542 is an abundant number, since it is smaller than the sum of its proper divisors (133043677502658).

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

102124124020542 is a wasteful number, since it uses less digits than its factorization.

102124124020542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958899 (or 3958873 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 102124124020542 its reverse (245020421421201), we get a palindrome (347144545441743).

The spelling of 102124124020542 in words is "one hundred two trillion, one hundred twenty-four billion, one hundred twenty-four million, twenty thousand, five hundred forty-two".