340450632331 has 4 divisors (see below), whose sum is σ = 340474307200. Its totient is φ = 340426957464.

The previous prime is 340450632257. The next prime is 340450632341. The reversal of 340450632331 is 133236054043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133236054043 = 19 ⋅7012423897.

It is a cyclic number.

It is not a de Polignac number, because 340450632331 - 2²¹ = 340448535179 is a prime.

It is a super-2 number, since 2×340450632331² (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 (340450632341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11815851 + ... + 11844628.

It is an arithmetic number, because the mean of its divisors is an integer number (85118576800).

Almost surely, 2^340450632331 is an apocalyptic number.

340450632331 is a deficient number, since it is larger than the sum of its proper divisors (23674869).

340450632331 is a wasteful number, since it uses less digits than its factorization.

340450632331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23674868.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 340450632331 its reverse (133236054043), we get a palindrome (473686686374).

The spelling of 340450632331 in words is "three hundred forty billion, four hundred fifty million, six hundred thirty-two thousand, three hundred thirty-one".