1331102431212 has 48 divisors (see below), whose sum is σ = 3120017493600. Its totient is φ = 441689407488.

The previous prime is 1331102431207. The next prime is 1331102431223. The reversal of 1331102431212 is 2121342011331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2047728 + ... + 2618280.

It is an arithmetic number, because the mean of its divisors is an integer number (65000364450).

Almost surely, 2^{1331102431212} is an apocalyptic number.

1331102431212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331102431212 is an abundant number, since it is smaller than the sum of its proper divisors (1788915062388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331102431212 is a wasteful number, since it uses less digits than its factorization.

1331102431212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571442 (or 571440 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1331102431212 its reverse (2121342011331), we get a palindrome (3452444442543).

The spelling of 1331102431212 in words is "one trillion, three hundred thirty-one billion, one hundred two million, four hundred thirty-one thousand, two hundred twelve".