340105431331 has 16 divisors (see below), whose sum is σ = 371210812416. Its totient is φ = 310360598656.

The previous prime is 340105431307. The next prime is 340105431431. The reversal of 340105431331 is 133134501043.

It is a cyclic number.

It is not a de Polignac number, because 340105431331 - 2²⁵ = 340071876899 is a prime.

It is a super-2 number, since 2×340105431331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340105431331.

It is not an unprimeable number, because it can be changed into a prime (340105431431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903591 + ... + 2074576.

It is an arithmetic number, because the mean of its divisors is an integer number (23200675776).

Almost surely, 2^340105431331 is an apocalyptic number.

340105431331 is a deficient number, since it is larger than the sum of its proper divisors (31105381085).

340105431331 is a wasteful number, since it uses less digits than its factorization.

340105431331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978338.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 340105431331 its reverse (133134501043), we get a palindrome (473239932374).

The spelling of 340105431331 in words is "three hundred forty billion, one hundred five million, four hundred thirty-one thousand, three hundred thirty-one".