340542032431 has 8 divisors (see below), whose sum is σ = 340819372800. Its totient is φ = 340264757280.

The previous prime is 340542032423. The next prime is 340542032461. The reversal of 340542032431 is 134230245043.

It is a happy number.

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 340542032431 - 2³ = 340542032423 is a prime.

It is a super-2 number, since 2×340542032431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340542032393 and 340542032402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340542032461) 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, 18038265 + ... + 18057133.

It is an arithmetic number, because the mean of its divisors is an integer number (42602421600).

Almost surely, 2^340542032431 is an apocalyptic number.

340542032431 is a deficient number, since it is larger than the sum of its proper divisors (277340369).

340542032431 is a wasteful number, since it uses less digits than its factorization.

340542032431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32609.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 340542032431 its reverse (134230245043), we get a palindrome (474772277474).

The spelling of 340542032431 in words is "three hundred forty billion, five hundred forty-two million, thirty-two thousand, four hundred thirty-one".