2102311000 has 32 divisors (see below), whose sum is σ = 4919410080. Its totient is φ = 840924000.

The previous prime is 2102310971. The next prime is 2102311019. The reversal of 2102311000 is 1132012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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, 1050156 + ... + 1052155.

It is an arithmetic number, because the mean of its divisors is an integer number (153731565).

Almost surely, 2^2102311000 is an apocalyptic number.

2102311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102311000 is an abundant number, since it is smaller than the sum of its proper divisors (2817099080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102311000 is a wasteful number, since it uses less digits than its factorization.

2102311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102332 (or 2102318 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2102311000 is about 45850.9650934416. The cubic root of 2102311000 is about 1281.0487417373.

Adding to 2102311000 its reverse (1132012), we get a palindrome (2103443012).

It can be divided in two parts, 21023 and 11000, that added together give a palindrome (32023).

The spelling of 2102311000 in words is "two billion, one hundred two million, three hundred eleven thousand".