20213234342 has 16 divisors (see below), whose sum is σ = 34653387552. Its totient is φ = 8662282560.

The previous prime is 20213234299. The next prime is 20213234351. The reversal of 20213234342 is 24343231202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267128 + ... + 334340.

It is an arithmetic number, because the mean of its divisors is an integer number (2165836722).

Almost surely, 2^20213234342 is an apocalyptic number.

20213234342 is a deficient number, since it is larger than the sum of its proper divisors (14440153210).

20213234342 is a wasteful number, since it uses less digits than its factorization.

20213234342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88703.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20213234342 its reverse (24343231202), we get a palindrome (44556465544).

The spelling of 20213234342 in words is "twenty billion, two hundred thirteen million, two hundred thirty-four thousand, three hundred forty-two".