20315433422342 has 16 divisors (see below), whose sum is σ = 32078219572800. Its totient is φ = 9622734212520.

The previous prime is 20315433422269. The next prime is 20315433422351. The reversal of 20315433422342 is 24322433451302.

It is a super-2 number, since 2×20315433422342² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 20315433422296 and 20315433422305.

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, 9147884 + ... + 11149647.

It is an arithmetic number, because the mean of its divisors is an integer number (2004888723300).

Almost surely, 2^{20315433422342} is an apocalyptic number.

20315433422342 is a deficient number, since it is larger than the sum of its proper divisors (11762786150458).

20315433422342 is a wasteful number, since it uses less digits than its factorization.

20315433422342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20323891.

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 20315433422342 its reverse (24322433451302), we get a palindrome (44637866873644).

The spelling of 20315433422342 in words is "twenty trillion, three hundred fifteen billion, four hundred thirty-three million, four hundred twenty-two thousand, three hundred forty-two".