102122142505553 has 4 divisors (see below), whose sum is σ = 102148647088308. Its totient is φ = 102095637922800.

The previous prime is 102122142505529. The next prime is 102122142505681. The reversal of 102122142505553 is 355505241221201.

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 48170429202064 + 53951713303489 = 6940492^2 + 7345183^2 .

It is a cyclic number.

It is not a de Polignac number, because 102122142505553 - 2⁶ = 102122142505489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102122142501553) 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, 13252285598 + ... + 13252293303.

It is an arithmetic number, because the mean of its divisors is an integer number (25537161772077).

Almost surely, 2^{102122142505553} is an apocalyptic number.

It is an amenable number.

102122142505553 is a deficient number, since it is larger than the sum of its proper divisors (26504582755).

102122142505553 is an equidigital number, since it uses as much as digits as its factorization.

102122142505553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26504582754.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 102122142505553 its reverse (355505241221201), we get a palindrome (457627383726754).

The spelling of 102122142505553 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred forty-two million, five hundred five thousand, five hundred fifty-three".