1020020011311 has 16 divisors (see below), whose sum is σ = 1554452928000. Its totient is φ = 582817307808.

The previous prime is 1020020011271. The next prime is 1020020011313. The reversal of 1020020011311 is 1131100200201.

It is not a de Polignac number, because 1020020011311 - 2⁶ = 1020020011247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020020011313) 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, 1891176 + ... + 2369933.

It is an arithmetic number, because the mean of its divisors is an integer number (97153308000).

Almost surely, 2^{1020020011311} is an apocalyptic number.

1020020011311 is a deficient number, since it is larger than the sum of its proper divisors (534432916689).

1020020011311 is a wasteful number, since it uses less digits than its factorization.

1020020011311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272518.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1020020011311 its reverse (1131100200201), we get a palindrome (2151120211512).

The spelling of 1020020011311 in words is "one trillion, twenty billion, twenty million, eleven thousand, three hundred eleven".