340023353403 has 32 divisors (see below), whose sum is σ = 476012759040. Its totient is φ = 215482101120.

The previous prime is 340023353381. The next prime is 340023353429. The reversal of 340023353403 is 304353320043.

It is not a de Polignac number, because 340023353403 - 2¹⁸ = 340023091259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340023353303) 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, 20136318 + ... + 20153196.

It is an arithmetic number, because the mean of its divisors is an integer number (14875398720).

Almost surely, 2^340023353403 is an apocalyptic number.

340023353403 is a deficient number, since it is larger than the sum of its proper divisors (135989405637).

340023353403 is a wasteful number, since it uses less digits than its factorization.

340023353403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18699.

The product of its (nonzero) digits is 38880, while the sum is 30.

Adding to 340023353403 its reverse (304353320043), we get a palindrome (644376673446).

The spelling of 340023353403 in words is "three hundred forty billion, twenty-three million, three hundred fifty-three thousand, four hundred three".