2102243331 has 16 divisors (see below), whose sum is σ = 2934171648. Its totient is φ = 1337179200.

The previous prime is 2102243327. The next prime is 2102243369. The reversal of 2102243331 is 1333422012.

It is not a de Polignac number, because 2102243331 - 2² = 2102243327 is a prime.

It is a super-2 number, since 2×2102243331² = 8838854045467951122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102243298 and 2102243307.

It is not an unprimeable number, because it can be changed into a prime (2102243431) 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, 152586 + ... + 165791.

It is an arithmetic number, because the mean of its divisors is an integer number (183385728).

Almost surely, 2^2102243331 is an apocalyptic number.

2102243331 is a deficient number, since it is larger than the sum of its proper divisors (831928317).

2102243331 is a wasteful number, since it uses less digits than its factorization.

2102243331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318482.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2102243331 is about 45850.2271641047. The cubic root of 2102243331 is about 1281.0349968287.

Adding to 2102243331 its reverse (1333422012), we get a palindrome (3435665343).

The spelling of 2102243331 in words is "two billion, one hundred two million, two hundred forty-three thousand, three hundred thirty-one".