3205420010345 has 24 divisors (see below), whose sum is σ = 4618843538688. Its totient is φ = 2127098988000.

The previous prime is 3205420010293. The next prime is 3205420010363. The reversal of 3205420010345 is 5430100245023.

It is a happy number.

It is not a de Polignac number, because 3205420010345 - 2¹² = 3205420006249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211014131 + ... + 211029320.

It is an arithmetic number, because the mean of its divisors is an integer number (192451814112).

Almost surely, 2^{3205420010345} is an apocalyptic number.

3205420010345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3205420010345 is a deficient number, since it is larger than the sum of its proper divisors (1413423528343).

3205420010345 is a wasteful number, since it uses less digits than its factorization.

3205420010345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422043501 (or 422043494 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 3205420010345 its reverse (5430100245023), we get a palindrome (8635520255368).

The spelling of 3205420010345 in words is "three trillion, two hundred five billion, four hundred twenty million, ten thousand, three hundred forty-five".