122312143400342 has 32 divisors (see below), whose sum is σ = 222940878197760. Its totient is φ = 49129563853440.

The previous prime is 122312143400339. The next prime is 122312143400407. The reversal of 122312143400342 is 243004341213221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122312143400299 and 122312143400308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075082384 + ... + 1075196147.

It is an arithmetic number, because the mean of its divisors is an integer number (6966902443680).

Almost surely, 2^{122312143400342} is an apocalyptic number.

122312143400342 is a deficient number, since it is larger than the sum of its proper divisors (100628734797418).

122312143400342 is a wasteful number, since it uses less digits than its factorization.

122312143400342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150278796.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 122312143400342 its reverse (243004341213221), we get a palindrome (365316484613563).

The spelling of 122312143400342 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred forty-three million, four hundred thousand, three hundred forty-two".