20312122342 has 32 divisors (see below), whose sum is σ = 33724216512. Its totient is φ = 9126441984.

The previous prime is 20312122307. The next prime is 20312122409. The reversal of 20312122342 is 24322121302.

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 15 ways as a sum of consecutive naturals, for example, 412258 + ... + 458890.

It is an arithmetic number, because the mean of its divisors is an integer number (1053881766).

Almost surely, 2^20312122342 is an apocalyptic number.

20312122342 is a deficient number, since it is larger than the sum of its proper divisors (13412094170).

20312122342 is a wasteful number, since it uses less digits than its factorization.

20312122342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47232.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20312122342 its reverse (24322121302), we get a palindrome (44634243644).

The spelling of 20312122342 in words is "twenty billion, three hundred twelve million, one hundred twenty-two thousand, three hundred forty-two".