353145321243 has 24 divisors (see below), whose sum is σ = 599276910960. Its totient is φ = 197563815360.

The previous prime is 353145321239. The next prime is 353145321253. The reversal of 353145321243 is 342123541353.

353145321243 is a `hidden beast` number, since 3 + 53 + 1 + 45 + 321 + 243 = 666.

It is not a de Polignac number, because 353145321243 - 2² = 353145321239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 353145321198 and 353145321207.

It is not an unprimeable number, because it can be changed into a prime (353145321253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137195808 + ... + 137198381.

It is an arithmetic number, because the mean of its divisors is an integer number (24969871290).

Almost surely, 2^353145321243 is an apocalyptic number.

353145321243 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

353145321243 is a deficient number, since it is larger than the sum of its proper divisors (246131589717).

353145321243 is a wasteful number, since it uses less digits than its factorization.

353145321243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274394219 (or 274394216 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

Adding to 353145321243 its reverse (342123541353), we get a palindrome (695268862596).

The spelling of 353145321243 in words is "three hundred fifty-three billion, one hundred forty-five million, three hundred twenty-one thousand, two hundred forty-three".