340215531331 has 8 divisors (see below), whose sum is σ = 366430965824. Its totient is φ = 314006526720.

The previous prime is 340215531319. The next prime is 340215531347. The reversal of 340215531331 is 133135512043.

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 340215531331 - 2⁹ = 340215530819 is a prime.

It is a super-2 number, since 2×340215531331² (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 = 340215531293 and 340215531302.

It is not an unprimeable number, because it can be changed into a prime (340215531361) 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, 1497291 + ... + 1709476.

It is an arithmetic number, because the mean of its divisors is an integer number (45803870728).

Almost surely, 2^340215531331 is an apocalyptic number.

340215531331 is a deficient number, since it is larger than the sum of its proper divisors (26215434493).

340215531331 is a wasteful number, since it uses less digits than its factorization.

340215531331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214941.

The product of its (nonzero) digits is 16200, while the sum is 31.

The spelling of 340215531331 in words is "three hundred forty billion, two hundred fifteen million, five hundred thirty-one thousand, three hundred thirty-one".