102104542051 has 4 divisors (see below), whose sum is σ = 102106035000. Its totient is φ = 102103049104.

The previous prime is 102104542039. The next prime is 102104542087. The reversal of 102104542051 is 150245401201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150245401201 = 7 ⋅21463628743.

It is a cyclic number.

It is not a de Polignac number, because 102104542051 - 2¹³ = 102104533859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102104542451) 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 3 ways as a sum of consecutive naturals, for example, 638701 + ... + 782398.

It is an arithmetic number, because the mean of its divisors is an integer number (25526508750).

Almost surely, 2^102104542051 is an apocalyptic number.

102104542051 is a deficient number, since it is larger than the sum of its proper divisors (1492949).

102104542051 is an equidigital number, since it uses as much as digits as its factorization.

102104542051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492948.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 102104542051 its reverse (150245401201), we get a palindrome (252349943252).

The spelling of 102104542051 in words is "one hundred two billion, one hundred four million, five hundred forty-two thousand, fifty-one".