102355435434121 has 4 divisors (see below), whose sum is σ = 108376343400852. Its totient is φ = 96334527467392.

The previous prime is 102355435434073. The next prime is 102355435434151. The reversal of 102355435434121 is 121434534553201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82374937732096 + 19980497702025 = 9076064^2 + 4469955^2 .

It is a cyclic number.

It is not a de Polignac number, because 102355435434121 - 2³⁹ = 101805679620233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102355435434151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3010453983340 + ... + 3010453983373.

It is an arithmetic number, because the mean of its divisors is an integer number (27094085850213).

Almost surely, 2^{102355435434121} is an apocalyptic number.

It is an amenable number.

102355435434121 is a deficient number, since it is larger than the sum of its proper divisors (6020907966731).

102355435434121 is an equidigital number, since it uses as much as digits as its factorization.

102355435434121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020907966730.

The product of its (nonzero) digits is 864000, while the sum is 43.

Adding to 102355435434121 its reverse (121434534553201), we get a palindrome (223789969987322).

The spelling of 102355435434121 in words is "one hundred two trillion, three hundred fifty-five billion, four hundred thirty-five million, four hundred thirty-four thousand, one hundred twenty-one".