2321321214505 has 4 divisors (see below), whose sum is σ = 2785585457412. Its totient is φ = 1857056971600.

The previous prime is 2321321214491. The next prime is 2321321214517. The reversal of 2321321214505 is 5054121231232.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 847187703184 + 1474133511321 = 920428^2 + 1214139^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2321321214505 is a prime.

It is a Duffinian number.

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, 232132121446 + ... + 232132121455.

It is an arithmetic number, because the mean of its divisors is an integer number (696396364353).

Almost surely, 2^{2321321214505} is an apocalyptic number.

It is an amenable number.

2321321214505 is a deficient number, since it is larger than the sum of its proper divisors (464264242907).

2321321214505 is an equidigital number, since it uses as much as digits as its factorization.

2321321214505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464264242906.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 2321321214505 its reverse (5054121231232), we get a palindrome (7375442445737).

The spelling of 2321321214505 in words is "two trillion, three hundred twenty-one billion, three hundred twenty-one million, two hundred fourteen thousand, five hundred five".