20102432442 has 16 divisors (see below), whose sum is σ = 42569857152. Its totient is φ = 6306645440.

The previous prime is 20102432407. The next prime is 20102432443. The reversal of 20102432442 is 24423420102.

It is not an unprimeable number, because it can be changed into a prime (20102432443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98541234 + ... + 98541437.

It is an arithmetic number, because the mean of its divisors is an integer number (2660616072).

Almost surely, 2^20102432442 is an apocalyptic number.

20102432442 is an abundant number, since it is smaller than the sum of its proper divisors (22467424710).

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

20102432442 is a wasteful number, since it uses less digits than its factorization.

20102432442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197082693.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20102432442 its reverse (24423420102), we get a palindrome (44525852544).

The spelling of 20102432442 in words is "twenty billion, one hundred two million, four hundred thirty-two thousand, four hundred forty-two".