20042343107 has 16 divisors (see below), whose sum is σ = 20766692352. Its totient is φ = 19323027360.

The previous prime is 20042343077. The next prime is 20042343109. The reversal of 20042343107 is 70134324002.

It is a cyclic number.

It is not a de Polignac number, because 20042343107 - 2⁸ = 20042342851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20042343109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13513988 + ... + 13515470.

It is an arithmetic number, because the mean of its divisors is an integer number (1297918272).

Almost surely, 2^20042343107 is an apocalyptic number.

20042343107 is a deficient number, since it is larger than the sum of its proper divisors (724349245).

20042343107 is a wasteful number, since it uses less digits than its factorization.

20042343107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 20042343107 its reverse (70134324002), we get a palindrome (90176667109).

The spelling of 20042343107 in words is "twenty billion, forty-two million, three hundred forty-three thousand, one hundred seven".