1322130340645 has 4 divisors (see below), whose sum is σ = 1586556408780. Its totient is φ = 1057704272512.

The previous prime is 1322130340631. The next prime is 1322130340667. The reversal of 1322130340645 is 5460430312231.

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 1055891884356 + 266238456289 = 1027566^2 + 515983^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322130340645 - 2²¹ = 1322128243493 is a prime.

It is a super-3 number, since 3×1322130340645³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322130340645.

It is a congruent 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, 132213034060 + ... + 132213034069.

It is an arithmetic number, because the mean of its divisors is an integer number (396639102195).

Almost surely, 2^{1322130340645} is an apocalyptic number.

It is an amenable number.

1322130340645 is a deficient number, since it is larger than the sum of its proper divisors (264426068135).

1322130340645 is an equidigital number, since it uses as much as digits as its factorization.

1322130340645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264426068134.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 1322130340645 its reverse (5460430312231), we get a palindrome (6782560652876).

The spelling of 1322130340645 in words is "one trillion, three hundred twenty-two billion, one hundred thirty million, three hundred forty thousand, six hundred forty-five".