102102351420 has 24 divisors (see below), whose sum is σ = 285886584144. Its totient is φ = 27227293696.

The previous prime is 102102351419. The next prime is 102102351443. The reversal of 102102351420 is 24153201201.

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, 850852869 + ... + 850852988.

It is an arithmetic number, because the mean of its divisors is an integer number (11911941006).

Almost surely, 2^102102351420 is an apocalyptic number.

102102351420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102351420 is an abundant number, since it is smaller than the sum of its proper divisors (183784232724).

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

102102351420 is a wasteful number, since it uses less digits than its factorization.

102102351420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701705869 (or 1701705867 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 102102351420 its reverse (24153201201), we get a palindrome (126255552621).

The spelling of 102102351420 in words is "one hundred two billion, one hundred two million, three hundred fifty-one thousand, four hundred twenty".