123021121321234 has 8 divisors (see below), whose sum is σ = 184534785984780. Its totient is φ = 61509525992976.

The previous prime is 123021121321193. The next prime is 123021121321249. The reversal of 123021121321234 is 432123121120321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 122993977770225 + 27143551009 = 11090265^2 + 164753^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×123021121321234² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517185189 + ... + 517423000.

Almost surely, 2^{123021121321234} is an apocalyptic number.

123021121321234 is a deficient number, since it is larger than the sum of its proper divisors (61513664663546).

123021121321234 is a wasteful number, since it uses less digits than its factorization.

123021121321234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034667644.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 123021121321234 its reverse (432123121120321), we get a palindrome (555144242441555).

The spelling of 123021121321234 in words is "one hundred twenty-three trillion, twenty-one billion, one hundred twenty-one million, three hundred twenty-one thousand, two hundred thirty-four".