340402314331 has 4 divisors (see below), whose sum is σ = 352140325200. Its totient is φ = 328664303464.

The previous prime is 340402314323. The next prime is 340402314341. The reversal of 340402314331 is 133413204043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340402314331 - 2³ = 340402314323 is a prime.

It is a super-2 number, since 2×340402314331² (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 340402314331.

It is not an unprimeable number, because it can be changed into a prime (340402314341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5869005391 + ... + 5869005448.

It is an arithmetic number, because the mean of its divisors is an integer number (88035081300).

Almost surely, 2^340402314331 is an apocalyptic number.

340402314331 is a deficient number, since it is larger than the sum of its proper divisors (11738010869).

340402314331 is a wasteful number, since it uses less digits than its factorization.

340402314331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738010868.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 340402314331 its reverse (133413204043), we get a palindrome (473815518374).

The spelling of 340402314331 in words is "three hundred forty billion, four hundred two million, three hundred fourteen thousand, three hundred thirty-one".