2101332123 has 48 divisors (see below), whose sum is σ = 3402453600. Its totient is φ = 1238630400.

The previous prime is 2101332119. The next prime is 2101332131. The reversal of 2101332123 is 3212331012.

2101332123 is a `hidden beast` number, since 210 + 1 + 332 + 123 = 666.

It is not a de Polignac number, because 2101332123 - 2² = 2101332119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101332096 and 2101332105.

It is not an unprimeable number, because it can be changed into a prime (2101332223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1821915 + ... + 1823067.

It is an arithmetic number, because the mean of its divisors is an integer number (70884450).

Almost surely, 2^2101332123 is an apocalyptic number.

2101332123 is a deficient number, since it is larger than the sum of its proper divisors (1301121477).

2101332123 is a wasteful number, since it uses less digits than its factorization.

2101332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2101332123 is about 45840.2892988253. The cubic root of 2101332123 is about 1280.8498837778.

Adding to 2101332123 its reverse (3212331012), we get a palindrome (5313663135).

The spelling of 2101332123 in words is "two billion, one hundred one million, three hundred thirty-two thousand, one hundred twenty-three".