102643357124 has 96 divisors (see below), whose sum is σ = 225163997184. Its totient is φ = 39774654720.

The previous prime is 102643357123. The next prime is 102643357133. The reversal of 102643357124 is 421753346201.

It is not an unprimeable number, because it can be changed into a prime (102643357123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51656459 + ... + 51658445.

It is an arithmetic number, because the mean of its divisors is an integer number (2345458304).

Almost surely, 2^102643357124 is an apocalyptic number.

102643357124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102643357124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112581998592).

102643357124 is an abundant number, since it is smaller than the sum of its proper divisors (122520640060).

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

102643357124 is a wasteful number, since it uses less digits than its factorization.

102643357124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 102643357124 in words is "one hundred two billion, six hundred forty-three million, three hundred fifty-seven thousand, one hundred twenty-four".