123044220221342 has 64 divisors (see below), whose sum is σ = 215158155503616. Its totient is φ = 51685496137440.

The previous prime is 123044220221239. The next prime is 123044220221353. The reversal of 123044220221342 is 243122022440321.

It is a junction number, because it is equal to n+sod(n) for n = 123044220221299 and 123044220221308.

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 31 ways as a sum of consecutive naturals, for example, 151597217 + ... + 152406707.

It is an arithmetic number, because the mean of its divisors is an integer number (3361846179744).

Almost surely, 2^{123044220221342} is an apocalyptic number.

123044220221342 is a deficient number, since it is larger than the sum of its proper divisors (92113935282274).

123044220221342 is a wasteful number, since it uses less digits than its factorization.

123044220221342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810381.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 123044220221342 its reverse (243122022440321), we get a palindrome (366166242661663).

The spelling of 123044220221342 in words is "one hundred twenty-three trillion, forty-four billion, two hundred twenty million, two hundred twenty-one thousand, three hundred forty-two".