1311212112232 has 32 divisors (see below), whose sum is σ = 2682121730400. Its totient is φ = 595983960000.

The previous prime is 1311212112229. The next prime is 1311212112253. The reversal of 1311212112232 is 2322112121131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319394 + ... + 2828782.

It is an arithmetic number, because the mean of its divisors is an integer number (83816304075).

Almost surely, 2^{1311212112232} is an apocalyptic number.

It is an amenable number.

1311212112232 is an abundant number, since it is smaller than the sum of its proper divisors (1370909618168).

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

1311212112232 is a wasteful number, since it uses less digits than its factorization.

1311212112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538657 (or 538653 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

Adding to 1311212112232 its reverse (2322112121131), we get a palindrome (3633324233363).

The spelling of 1311212112232 in words is "one trillion, three hundred eleven billion, two hundred twelve million, one hundred twelve thousand, two hundred thirty-two".