122420143431255 has 8 divisors (see below), whose sum is σ = 195872229490032. Its totient is φ = 65290743163328.

The previous prime is 122420143431203. The next prime is 122420143431277. The reversal of 122420143431255 is 552134341024221.

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

It is a cyclic number.

It is not a de Polignac number, because 122420143431255 - 2¹² = 122420143427159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4080671447694 + ... + 4080671447723.

It is an arithmetic number, because the mean of its divisors is an integer number (24484028686254).

Almost surely, 2^{122420143431255} is an apocalyptic number.

122420143431255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122420143431255 is a deficient number, since it is larger than the sum of its proper divisors (73452086058777).

122420143431255 is an equidigital number, since it uses as much as digits as its factorization.

122420143431255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161342895425.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 122420143431255 its reverse (552134341024221), we get a palindrome (674554484455476).

The spelling of 122420143431255 in words is "one hundred twenty-two trillion, four hundred twenty billion, one hundred forty-three million, four hundred thirty-one thousand, two hundred fifty-five".