102030135124 has 24 divisors (see below), whose sum is σ = 179676811496. Its totient is φ = 50694336000.

The previous prime is 102030135073. The next prime is 102030135139. The reversal of 102030135124 is 421531030201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52099524 + 101978035600 = 7218^2 + 319340^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102030135095 and 102030135104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903064 + ... + 1009744.

Almost surely, 2^102030135124 is an apocalyptic number.

It is an amenable number.

102030135124 is a deficient number, since it is larger than the sum of its proper divisors (77646676372).

102030135124 is a wasteful number, since it uses less digits than its factorization.

102030135124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108187 (or 108185 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 102030135124 its reverse (421531030201), we get a palindrome (523561165325).

The spelling of 102030135124 in words is "one hundred two billion, thirty million, one hundred thirty-five thousand, one hundred twenty-four".