102050423545 has 12 divisors (see below), whose sum is σ = 142454060964. Its totient is φ = 69977433120.

The previous prime is 102050423477. The next prime is 102050423549. The reversal of 102050423545 is 545324050201.

It can be written as a sum of positive squares in 2 ways, for example, as 46691862889 + 55358560656 = 216083^2 + 235284^2 .

It is not a de Polignac number, because 102050423545 - 2⁷ = 102050423417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102050423549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208265926 + ... + 208266415.

It is an arithmetic number, because the mean of its divisors is an integer number (11871171747).

Almost surely, 2^102050423545 is an apocalyptic number.

It is an amenable number.

102050423545 is a deficient number, since it is larger than the sum of its proper divisors (40403637419).

102050423545 is an equidigital number, since it uses as much as digits as its factorization.

102050423545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416532360 (or 416532353 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 102050423545 its reverse (545324050201), we get a palindrome (647374473746).

The spelling of 102050423545 in words is "one hundred two billion, fifty million, four hundred twenty-three thousand, five hundred forty-five".