2102201023 has 16 divisors (see below), whose sum is σ = 2282376096. Its totient is φ = 1924721280.

The previous prime is 2102200979. The next prime is 2102201027. The reversal of 2102201023 is 3201022012.

It is a cyclic number.

It is not a de Polignac number, because 2102201023 - 2¹³ = 2102192831 is a prime.

It is a super-2 number, since 2×2102201023² = 8838498282204493058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2102200994 and 2102201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102201027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1283361 + ... + 1284997.

It is an arithmetic number, because the mean of its divisors is an integer number (142648506).

Almost surely, 2^2102201023 is an apocalyptic number.

2102201023 is a deficient number, since it is larger than the sum of its proper divisors (180175073).

2102201023 is a wasteful number, since it uses less digits than its factorization.

2102201023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2102201023 is about 45849.7657900234. The cubic root of 2102201023 is about 1281.0264030896.

Adding to 2102201023 its reverse (3201022012), we get a palindrome (5303223035).

The spelling of 2102201023 in words is "two billion, one hundred two million, two hundred one thousand, twenty-three".