122557142431 has 8 divisors (see below), whose sum is σ = 123029244800. Its totient is φ = 122085514008.

The previous prime is 122557142419. The next prime is 122557142447. The reversal of 122557142431 is 134241755221.

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 122557142431 - 2¹³ = 122557134239 is a prime.

It is a super-2 number, since 2×122557142431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122557142401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404110 + ... + 639076.

It is an arithmetic number, because the mean of its divisors is an integer number (15378655600).

Almost surely, 2^122557142431 is an apocalyptic number.

122557142431 is a deficient number, since it is larger than the sum of its proper divisors (472102369).

122557142431 is a wasteful number, since it uses less digits than its factorization.

122557142431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236973.

The product of its digits is 67200, while the sum is 37.

Adding to 122557142431 its reverse (134241755221), we get a palindrome (256798897652).

The spelling of 122557142431 in words is "one hundred twenty-two billion, five hundred fifty-seven million, one hundred forty-two thousand, four hundred thirty-one".