20111230342 has 16 divisors (see below), whose sum is σ = 35408190240. Its totient is φ = 8386149888.

The previous prime is 20111230327. The next prime is 20111230357. The reversal of 20111230342 is 24303211102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20111230327) and next prime (20111230357).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19411867 + ... + 19412902.

It is an arithmetic number, because the mean of its divisors is an integer number (2213011890).

Almost surely, 2^20111230342 is an apocalyptic number.

20111230342 is a deficient number, since it is larger than the sum of its proper divisors (15296959898).

20111230342 is a wasteful number, since it uses less digits than its factorization.

20111230342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38824815.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20111230342 its reverse (24303211102), we get a palindrome (44414441444).

The spelling of 20111230342 in words is "twenty billion, one hundred eleven million, two hundred thirty thousand, three hundred forty-two".