345243011 has 4 divisors (see below), whose sum is σ = 346067400. Its totient is φ = 344418624.

The previous prime is 345242969. The next prime is 345243013. The reversal of 345243011 is 110342543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345243011 is a prime.

It is a super-2 number, since 2×345243011² = 238385473288692242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345243013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411566 + ... + 412403.

It is an arithmetic number, because the mean of its divisors is an integer number (86516850).

Almost surely, 2^345243011 is an apocalyptic number.

345243011 is a deficient number, since it is larger than the sum of its proper divisors (824389).

345243011 is an equidigital number, since it uses as much as digits as its factorization.

345243011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824388.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 345243011 is about 18580.7161056833. The cubic root of 345243011 is about 701.5225437941.

Adding to 345243011 its reverse (110342543), we get a palindrome (455585554).

The spelling of 345243011 in words is "three hundred forty-five million, two hundred forty-three thousand, eleven".