122312141423256 has 128 divisors (see below), whose sum is σ = 313528614347520. Its totient is φ = 39741554786304.

The previous prime is 122312141423249. The next prime is 122312141423287. The reversal of 122312141423256 is 652324141213221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1028525656 + ... + 1028644568.

It is an arithmetic number, because the mean of its divisors is an integer number (2449442299590).

Almost surely, 2^{122312141423256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122312141423256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156764307173760).

122312141423256 is an abundant number, since it is smaller than the sum of its proper divisors (191216472924264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122312141423256 is a wasteful number, since it uses less digits than its factorization.

122312141423256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120985 (or 120981 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

Adding to 122312141423256 its reverse (652324141213221), we get a palindrome (774636282636477).

The spelling of 122312141423256 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred forty-one million, four hundred twenty-three thousand, two hundred fifty-six".