2101331323 has 16 divisors (see below), whose sum is σ = 2594104576. Its totient is φ = 1657545120.

The previous prime is 2101331279. The next prime is 2101331341. The reversal of 2101331323 is 3231331012.

It is a de Polignac number, because none of the positive numbers 2^k-2101331323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101331323.

It is not an unprimeable number, because it can be changed into a prime (2101331363) 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, 4761 + ... + 65002.

It is an arithmetic number, because the mean of its divisors is an integer number (162131536).

Almost surely, 2^2101331323 is an apocalyptic number.

2101331323 is a deficient number, since it is larger than the sum of its proper divisors (492773253).

2101331323 is a wasteful number, since it uses less digits than its factorization.

2101331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70114.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2101331323 is about 45840.2805728761. The cubic root of 2101331323 is about 1280.8497212333.

Adding to 2101331323 its reverse (3231331012), we get a palindrome (5332662335).

The spelling of 2101331323 in words is "two billion, one hundred one million, three hundred thirty-one thousand, three hundred twenty-three".