12102101331 has 32 divisors (see below), whose sum is σ = 17121984000. Its totient is φ = 7590336768.

The previous prime is 12102101329. The next prime is 12102101353. The reversal of 12102101331 is 13310120121.

It is a happy number.

It is not a de Polignac number, because 12102101331 - 2¹ = 12102101329 is a prime.

It is a super-2 number, since 2×12102101331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12102101331.

It is not an unprimeable number, because it can be changed into a prime (12102101381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1638615 + ... + 1645983.

It is an arithmetic number, because the mean of its divisors is an integer number (535062000).

Almost surely, 2^12102101331 is an apocalyptic number.

12102101331 is a deficient number, since it is larger than the sum of its proper divisors (5019882669).

12102101331 is a wasteful number, since it uses less digits than its factorization.

12102101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12102101331 its reverse (13310120121), we get a palindrome (25412221452).

The spelling of 12102101331 in words is "twelve billion, one hundred two million, one hundred one thousand, three hundred thirty-one".