342405353531 has 8 divisors (see below), whose sum is σ = 345618425664. Its totient is φ = 339192522760.

The previous prime is 342405353527. The next prime is 342405353561. The reversal of 342405353531 is 135353504243.

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 342405353531 - 2² = 342405353527 is a prime.

It is a super-2 number, since 2×342405353531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342405353561) 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, 4179836 + ... + 4260966.

It is an arithmetic number, because the mean of its divisors is an integer number (43202303208).

Almost surely, 2^342405353531 is an apocalyptic number.

342405353531 is a deficient number, since it is larger than the sum of its proper divisors (3213072133).

342405353531 is a wasteful number, since it uses less digits than its factorization.

342405353531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120681.

The product of its (nonzero) digits is 324000, while the sum is 38.

Adding to 342405353531 its reverse (135353504243), we get a palindrome (477758857774).

The spelling of 342405353531 in words is "three hundred forty-two billion, four hundred five million, three hundred fifty-three thousand, five hundred thirty-one".