102421314142340 has 96 divisors (see below), whose sum is σ = 223450447094784. Its totient is φ = 39403855779840.

The previous prime is 102421314142313. The next prime is 102421314142349. The reversal of 102421314142340 is 43241413124201.

It is a junction number, because it is equal to n+sod(n) for n = 102421314142297 and 102421314142306.

It is not an unprimeable number, because it can be changed into a prime (102421314142349) 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, 131723387 + ... + 132498653.

It is an arithmetic number, because the mean of its divisors is an integer number (2327608823904).

Almost surely, 2^{102421314142340} is an apocalyptic number.

102421314142340 is a gapful number since it is divisible by the number (10) 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 102421314142340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111725223547392).

102421314142340 is an abundant number, since it is smaller than the sum of its proper divisors (121029132952444).

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

102421314142340 is a wasteful number, since it uses less digits than its factorization.

102421314142340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777597 (or 777595 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 102421314142340 its reverse (43241413124201), we get a palindrome (145662727266541).

The spelling of 102421314142340 in words is "one hundred two trillion, four hundred twenty-one billion, three hundred fourteen million, one hundred forty-two thousand, three hundred forty".