123122115420135 has 96 divisors (see below), whose sum is σ = 232108043348160. Its totient is φ = 55208163594240.

The previous prime is 123122115420113. The next prime is 123122115420179. The reversal of 123122115420135 is 531024511221321.

It is not a de Polignac number, because 123122115420135 - 2¹³ = 123122115411943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123122115420096 and 123122115420105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16138380 + ... + 22509809.

It is an arithmetic number, because the mean of its divisors is an integer number (2417792118210).

Almost surely, 2^{123122115420135} is an apocalyptic number.

123122115420135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123122115420135 is a deficient number, since it is larger than the sum of its proper divisors (108985927928025).

123122115420135 is a wasteful number, since it uses less digits than its factorization.

123122115420135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38648289 (or 38648258 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 123122115420135 its reverse (531024511221321), we get a palindrome (654146626641456).

The spelling of 123122115420135 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, one hundred fifteen million, four hundred twenty thousand, one hundred thirty-five".