1212130111331 has 16 divisors (see below), whose sum is σ = 1288670929440. Its totient is φ = 1136865715200.

The previous prime is 1212130111271. The next prime is 1212130111411. The reversal of 1212130111331 is 1331110312121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212130111331 is a prime.

It is a super-2 number, since 2×1212130111331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212130611331) 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, 31784531 + ... + 31822643.

It is an arithmetic number, because the mean of its divisors is an integer number (80541933090).

Almost surely, 2^{1212130111331} is an apocalyptic number.

1212130111331 is a deficient number, since it is larger than the sum of its proper divisors (76540818109).

1212130111331 is a wasteful number, since it uses less digits than its factorization.

1212130111331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54806.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1212130111331 its reverse (1331110312121), we get a palindrome (2543240423452).

The spelling of 1212130111331 in words is "one trillion, two hundred twelve billion, one hundred thirty million, one hundred eleven thousand, three hundred thirty-one".