20201212342 has 16 divisors (see below), whose sum is σ = 30467490480. Its totient is φ = 10045412352.

The previous prime is 20201212333. The next prime is 20201212379. The reversal of 20201212342 is 24321210202.

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, 2189034 + ... + 2198242.

It is an arithmetic number, because the mean of its divisors is an integer number (1904218155).

Almost surely, 2^20201212342 is an apocalyptic number.

20201212342 is a deficient number, since it is larger than the sum of its proper divisors (10266278138).

20201212342 is a wasteful number, since it uses less digits than its factorization.

20201212342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20201212342 its reverse (24321210202), we get a palindrome (44522422544).

The spelling of 20201212342 in words is "twenty billion, two hundred one million, two hundred twelve thousand, three hundred forty-two".