2002123101 has 16 divisors (see below), whose sum is σ = 2941017408. Its totient is φ = 1201392000.

The previous prime is 2002123063. The next prime is 2002123139. The reversal of 2002123101 is 1013212002.

It is an interprime number because it is at equal distance from previous prime (2002123063) and next prime (2002123139).

It is not a de Polignac number, because 2002123101 - 2¹⁹ = 2001598813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002123181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297016 + ... + 303681.

It is an arithmetic number, because the mean of its divisors is an integer number (183813588).

Almost surely, 2^2002123101 is an apocalyptic number.

It is an amenable number.

2002123101 is a deficient number, since it is larger than the sum of its proper divisors (938894307).

2002123101 is a wasteful number, since it uses less digits than its factorization.

2002123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600812.

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

The square root of 2002123101 is about 44745.0902446291. The cubic root of 2002123101 is about 1260.3667155067.

Adding to 2002123101 its reverse (1013212002), we get a palindrome (3015335103).

The spelling of 2002123101 in words is "two billion, two million, one hundred twenty-three thousand, one hundred one".