1020120332311 has 4 divisors (see below), whose sum is σ = 1020122680000. Its totient is φ = 1020117984624.

The previous prime is 1020120332303. The next prime is 1020120332323. The reversal of 1020120332311 is 1132330210201.

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 1020120332311 - 2³ = 1020120332303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020120332111) 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, 310311 + ... + 1461688.

It is an arithmetic number, because the mean of its divisors is an integer number (255030670000).

Almost surely, 2^{1020120332311} is an apocalyptic number.

1020120332311 is a deficient number, since it is larger than the sum of its proper divisors (2347689).

1020120332311 is an equidigital number, since it uses as much as digits as its factorization.

1020120332311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347688.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1020120332311 its reverse (1132330210201), we get a palindrome (2152450542512).

The spelling of 1020120332311 in words is "one trillion, twenty billion, one hundred twenty million, three hundred thirty-two thousand, three hundred eleven".