20342442102 has 16 divisors (see below), whose sum is σ = 40835016192. Its totient is φ = 6755792040.

The previous prime is 20342442101. The next prime is 20342442103. The reversal of 20342442102 is 20124424302.

It is an interprime number because it is at equal distance from previous prime (20342442101) and next prime (20342442103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342442101) 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, 6253738 + ... + 6256989.

It is an arithmetic number, because the mean of its divisors is an integer number (2552188512).

Almost surely, 2^20342442102 is an apocalyptic number.

20342442102 is an abundant number, since it is smaller than the sum of its proper divisors (20492574090).

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

20342442102 is a wasteful number, since it uses less digits than its factorization.

20342442102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12511003.

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

Adding to 20342442102 its reverse (20124424302), we get a palindrome (40466866404).

The spelling of 20342442102 in words is "twenty billion, three hundred forty-two million, four hundred forty-two thousand, one hundred two".