2021311102 has 4 divisors (see below), whose sum is σ = 3031966656. Its totient is φ = 1010655550.

The previous prime is 2021311099. The next prime is 2021311109. The reversal of 2021311102 is 2011131202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021311109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505327774 + ... + 505327777.

It is an arithmetic number, because the mean of its divisors is an integer number (757991664).

Almost surely, 2^2021311102 is an apocalyptic number.

2021311102 is a deficient number, since it is larger than the sum of its proper divisors (1010655554).

2021311102 is a wasteful number, since it uses less digits than its factorization.

2021311102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010655553.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2021311102 is about 44958.9935607994. The cubic root of 2021311102 is about 1264.3802996140.

Adding to 2021311102 its reverse (2011131202), we get a palindrome (4032442304).

The spelling of 2021311102 in words is "two billion, twenty-one million, three hundred eleven thousand, one hundred two".