1300121320011 has 4 divisors (see below), whose sum is σ = 1733495093352. Its totient is φ = 866747546672.

The previous prime is 1300121319941. The next prime is 1300121320013. The reversal of 1300121320011 is 1100231210031.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1300121320011 - 2⁹ = 1300121319499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300121320013) 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, 216686886666 + ... + 216686886671.

It is an arithmetic number, because the mean of its divisors is an integer number (433373773338).

Almost surely, 2^{1300121320011} is an apocalyptic number.

1300121320011 is a deficient number, since it is larger than the sum of its proper divisors (433373773341).

1300121320011 is an equidigital number, since it uses as much as digits as its factorization.

1300121320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433373773340.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1300121320011 its reverse (1100231210031), we get a palindrome (2400352530042).

The spelling of 1300121320011 in words is "one trillion, three hundred billion, one hundred twenty-one million, three hundred twenty thousand, eleven".