1211148038788 has 24 divisors (see below), whose sum is σ = 2173138138080. Its totient is φ = 590277737280.

The previous prime is 1211148038783. The next prime is 1211148038791. The reversal of 1211148038788 is 8878308411121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1211148038783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103918 + ... + 3472261.

It is an arithmetic number, because the mean of its divisors is an integer number (90547422420).

Almost surely, 2^{1211148038788} is an apocalyptic number.

It is an amenable number.

1211148038788 is a deficient number, since it is larger than the sum of its proper divisors (961990099292).

1211148038788 is a wasteful number, since it uses less digits than its factorization.

1211148038788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577347 (or 6577345 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 52.

The spelling of 1211148038788 in words is "one trillion, two hundred eleven billion, one hundred forty-eight million, thirty-eight thousand, seven hundred eighty-eight".