122542315555431 has 8 divisors (see below), whose sum is σ = 171989214814720. Its totient is φ = 77395146666552.

The previous prime is 122542315555423. The next prime is 122542315555481. The reversal of 122542315555431 is 134555513245221.

It is a happy number.

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

It is not a de Polignac number, because 122542315555431 - 2³ = 122542315555423 is a prime.

It is a super-2 number, since 2×122542315555431² (a number of 29 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 (122542315555411) 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, 1074932592535 + ... + 1074932592648.

It is an arithmetic number, because the mean of its divisors is an integer number (21498651851840).

Almost surely, 2^{122542315555431} is an apocalyptic number.

122542315555431 is a deficient number, since it is larger than the sum of its proper divisors (49446899259289).

122542315555431 is a wasteful number, since it uses less digits than its factorization.

122542315555431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149865185205.

The product of its digits is 3600000, while the sum is 48.

The spelling of 122542315555431 in words is "one hundred twenty-two trillion, five hundred forty-two billion, three hundred fifteen million, five hundred fifty-five thousand, four hundred thirty-one".