122615351123 has 4 divisors (see below), whose sum is σ = 124928848368. Its totient is φ = 120301853880.

The previous prime is 122615351119. The next prime is 122615351137. The reversal of 122615351123 is 321153516221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122615351123 - 2² = 122615351119 is a prime.

It is a super-2 number, since 2×122615351123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122615351123.

It is not an unprimeable number, because it can be changed into a prime (122615351423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156748543 + ... + 1156748648.

It is an arithmetic number, because the mean of its divisors is an integer number (31232212092).

Almost surely, 2^122615351123 is an apocalyptic number.

122615351123 is a deficient number, since it is larger than the sum of its proper divisors (2313497245).

122615351123 is an equidigital number, since it uses as much as digits as its factorization.

122615351123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313497244.

The product of its digits is 10800, while the sum is 32.

Adding to 122615351123 its reverse (321153516221), we get a palindrome (443768867344).

The spelling of 122615351123 in words is "one hundred twenty-two billion, six hundred fifteen million, three hundred fifty-one thousand, one hundred twenty-three".