1131211230412 has 12 divisors (see below), whose sum is σ = 2043478351936. Its totient is φ = 547360272720.

The previous prime is 1131211230361. The next prime is 1131211230419. The reversal of 1131211230412 is 2140321121311.

It is not an unprimeable number, because it can be changed into a prime (1131211230419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4561335483 + ... + 4561335730.

Almost surely, 2^{1131211230412} is an apocalyptic number.

It is an amenable number.

1131211230412 is a deficient number, since it is larger than the sum of its proper divisors (912267121524).

1131211230412 is a wasteful number, since it uses less digits than its factorization.

1131211230412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122671248 (or 9122671246 counting only the distinct ones).

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

Adding to 1131211230412 its reverse (2140321121311), we get a palindrome (3271532351723).

The spelling of 1131211230412 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, two hundred thirty thousand, four hundred twelve".