1020101311 has 4 divisors (see below), whose sum is σ = 1020169624. Its totient is φ = 1020033000.

The previous prime is 1020101309. The next prime is 1020101321. The reversal of 1020101311 is 1131010201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1020101311 - 2¹ = 1020101309 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 (1020101321) 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, 1080 + ... + 45181.

It is an arithmetic number, because the mean of its divisors is an integer number (255042406).

Almost surely, 2^1020101311 is an apocalyptic number.

1020101311 is a deficient number, since it is larger than the sum of its proper divisors (68313).

1020101311 is an equidigital number, since it uses as much as digits as its factorization.

1020101311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68312.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1020101311 is about 31939.0248911891. The cubic root of 1020101311 is about 1006.6560358925.

Adding to 1020101311 its reverse (1131010201), we get a palindrome (2151111512).

The spelling of 1020101311 in words is "one billion, twenty million, one hundred one thousand, three hundred eleven".