122312143405142 has 32 divisors (see below), whose sum is σ = 186197264947200. Its totient is φ = 60252519396960.

The previous prime is 122312143405117. The next prime is 122312143405147. The reversal of 122312143405142 is 241504341213221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312143405147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471424292 + ... + 471683672.

It is an arithmetic number, because the mean of its divisors is an integer number (5818664529600).

Almost surely, 2^{122312143405142} is an apocalyptic number.

122312143405142 is a deficient number, since it is larger than the sum of its proper divisors (63885121542058).

122312143405142 is a wasteful number, since it uses less digits than its factorization.

122312143405142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271188.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 122312143405142 its reverse (241504341213221), we get a palindrome (363816484618363).

The spelling of 122312143405142 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred forty-three million, four hundred five thousand, one hundred forty-two".