341221515545 has 4 divisors (see below), whose sum is σ = 409465818660. Its totient is φ = 272977212432.

The previous prime is 341221515499. The next prime is 341221515581. The reversal of 341221515545 is 545515122143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545515122143 = 7129 ⋅76520567.

It can be written as a sum of positive squares in 2 ways, for example, as 68782405696 + 272439109849 = 262264^2 + 521957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-341221515545 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 341221515499 and 341221515508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34122151550 + ... + 34122151559.

It is an arithmetic number, because the mean of its divisors is an integer number (102366454665).

Almost surely, 2^341221515545 is an apocalyptic number.

It is an amenable number.

341221515545 is a deficient number, since it is larger than the sum of its proper divisors (68244303115).

341221515545 is an equidigital number, since it uses as much as digits as its factorization.

341221515545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68244303114.

The product of its digits is 120000, while the sum is 38.

Adding to 341221515545 its reverse (545515122143), we get a palindrome (886736637688).

The spelling of 341221515545 in words is "three hundred forty-one billion, two hundred twenty-one million, five hundred fifteen thousand, five hundred forty-five".