2102020311 has 8 divisors (see below), whose sum is σ = 2899338480. Its totient is φ = 1353024512.

The previous prime is 2102020247. The next prime is 2102020337. The reversal of 2102020311 is 1130202012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102020311 - 2⁶ = 2102020247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102020351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12080490 + ... + 12080663.

It is an arithmetic number, because the mean of its divisors is an integer number (362417310).

Almost surely, 2^2102020311 is an apocalyptic number.

2102020311 is a deficient number, since it is larger than the sum of its proper divisors (797318169).

2102020311 is a wasteful number, since it uses less digits than its factorization.

2102020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24161185.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2102020311 is about 45847.7950505801. The cubic root of 2102020311 is about 1280.9896949799.

Adding to 2102020311 its reverse (1130202012), we get a palindrome (3232222323).

The spelling of 2102020311 in words is "two billion, one hundred two million, twenty thousand, three hundred eleven".