123122005220355 has 32 divisors (see below), whose sum is σ = 213433933008384. Its totient is φ = 60365152759296.

The previous prime is 123122005220339. The next prime is 123122005220449. The reversal of 123122005220355 is 553022500221321.

It is not a de Polignac number, because 123122005220355 - 2⁴ = 123122005220339 is a prime.

It is a super-2 number, since 2×123122005220355² (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 31 ways as a sum of consecutive naturals, for example, 5614307559 + ... + 5614329488.

It is an arithmetic number, because the mean of its divisors is an integer number (6669810406512).

Almost surely, 2^{123122005220355} is an apocalyptic number.

123122005220355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123122005220355 is a deficient number, since it is larger than the sum of its proper divisors (90311927788029).

123122005220355 is a wasteful number, since it uses less digits than its factorization.

123122005220355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11228637115.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 123122005220355 its reverse (553022500221321), we get a palindrome (676144505441676).

The spelling of 123122005220355 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, five million, two hundred twenty thousand, three hundred fifty-five".