2102143023311 has 4 divisors (see below), whose sum is σ = 2174630713800. Its totient is φ = 2029655332824.

The previous prime is 2102143023289. The next prime is 2102143023341. The reversal of 2102143023311 is 1133203412012.

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

It is a cyclic number.

It is not a de Polignac number, because 2102143023311 - 2⁶ = 2102143023247 is a prime.

It is a super-2 number, since 2×2102143023311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102143023341) 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, 36243845201 + ... + 36243845258.

It is an arithmetic number, because the mean of its divisors is an integer number (543657678450).

Almost surely, 2^{2102143023311} is an apocalyptic number.

2102143023311 is a deficient number, since it is larger than the sum of its proper divisors (72487690489).

2102143023311 is an equidigital number, since it uses as much as digits as its factorization.

2102143023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72487690488.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2102143023311 its reverse (1133203412012), we get a palindrome (3235346435323).

The spelling of 2102143023311 in words is "two trillion, one hundred two billion, one hundred forty-three million, twenty-three thousand, three hundred eleven".