1320020320011 has 16 divisors (see below), whose sum is σ = 1801089666816. Its totient is φ = 859485253536.

The previous prime is 1320020320009. The next prime is 1320020320013. The reversal of 1320020320011 is 1100230200231.

It is an interprime number because it is at equal distance from previous prime (1320020320009) and next prime (1320020320013).

It is not a de Polignac number, because 1320020320011 - 2¹ = 1320020320009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320020320013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430146 + ... + 2164568.

It is an arithmetic number, because the mean of its divisors is an integer number (112568104176).

Almost surely, 2^{1320020320011} is an apocalyptic number.

1320020320011 is a deficient number, since it is larger than the sum of its proper divisors (481069346805).

1320020320011 is a wasteful number, since it uses less digits than its factorization.

1320020320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748402.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1320020320011 its reverse (1100230200231), we get a palindrome (2420250520242).

The spelling of 1320020320011 in words is "one trillion, three hundred twenty billion, twenty million, three hundred twenty thousand, eleven".