340221031353 has 32 divisors (see below), whose sum is σ = 576112332800. Its totient is φ = 194386123728.

The previous prime is 340221031351. The next prime is 340221031369. The reversal of 340221031353 is 353130122043.

340221031353 is a `hidden beast` number, since 340 + 2 + 2 + 1 + 0 + 313 + 5 + 3 = 666.

It is not a de Polignac number, because 340221031353 - 2¹ = 340221031351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340221031351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1350450 + ... + 1582452.

It is an arithmetic number, because the mean of its divisors is an integer number (18003510400).

Almost surely, 2^340221031353 is an apocalyptic number.

It is an amenable number.

340221031353 is a deficient number, since it is larger than the sum of its proper divisors (235891301447).

340221031353 is a wasteful number, since it uses less digits than its factorization.

340221031353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239778 (or 239772 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 340221031353 its reverse (353130122043), we get a palindrome (693351153396).

The spelling of 340221031353 in words is "three hundred forty billion, two hundred twenty-one million, thirty-one thousand, three hundred fifty-three".