20342412111 has 32 divisors (see below), whose sum is σ = 32845619200. Its totient is φ = 10939471200.

The previous prime is 20342412091. The next prime is 20342412119. The reversal of 20342412111 is 11121424302.

It is not a de Polignac number, because 20342412111 - 2⁶ = 20342412047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342412119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108571 + ... + 229068.

It is an arithmetic number, because the mean of its divisors is an integer number (1026425600).

Almost surely, 2^20342412111 is an apocalyptic number.

20342412111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20342412111 is a deficient number, since it is larger than the sum of its proper divisors (12503207089).

20342412111 is a wasteful number, since it uses less digits than its factorization.

20342412111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337819.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20342412111 its reverse (11121424302), we get a palindrome (31463836413).

The spelling of 20342412111 in words is "twenty billion, three hundred forty-two million, four hundred twelve thousand, one hundred eleven".