102402021423342 has 16 divisors (see below), whose sum is σ = 206030414362752. Its totient is φ = 33929611888440.

The previous prime is 102402021423277. The next prime is 102402021423343. The reversal of 102402021423342 is 243324120204201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102402021423343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51098812084 + ... + 51098814087.

It is an arithmetic number, because the mean of its divisors is an integer number (12876900897672).

Almost surely, 2^{102402021423342} is an apocalyptic number.

102402021423342 is an abundant number, since it is smaller than the sum of its proper divisors (103628392939410).

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

102402021423342 is a wasteful number, since it uses less digits than its factorization.

102402021423342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102197626343.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 102402021423342 its reverse (243324120204201), we get a palindrome (345726141627543).

The spelling of 102402021423342 in words is "one hundred two trillion, four hundred two billion, twenty-one million, four hundred twenty-three thousand, three hundred forty-two".