30123432102 has 16 divisors (see below), whose sum is σ = 62324342640. Its totient is φ = 9694897632.

The previous prime is 30123432083. The next prime is 30123432161. The reversal of 30123432102 is 20123432103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86561413 + ... + 86561760.

It is an arithmetic number, because the mean of its divisors is an integer number (3895271415).

Almost surely, 2^30123432102 is an apocalyptic number.

30123432102 is an abundant number, since it is smaller than the sum of its proper divisors (32200910538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123432102 is a wasteful number, since it uses less digits than its factorization.

30123432102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173123207.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30123432102 its reverse (20123432103), we get a palindrome (50246864205).

Subtracting from 30123432102 its reverse (20123432103), we obtain a palindrome (9999999999).

It can be divided in two parts, 301234 and 32102, that added together give a triangular number (333336 = T₈₁₆).

The spelling of 30123432102 in words is "thirty billion, one hundred twenty-three million, four hundred thirty-two thousand, one hundred two".