1147420121276 has 24 divisors (see below), whose sum is σ = 2359031579184. Its totient is φ = 481435015680.

The previous prime is 1147420121209. The next prime is 1147420121293. The reversal of 1147420121276 is 6721210247411.

It is a congruent number.

It is an unprimeable number.

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, 1002989045 + ... + 1002990188.

It is an arithmetic number, because the mean of its divisors is an integer number (98292982466).

Almost surely, 2^{1147420121276} is an apocalyptic number.

It is an amenable number.

1147420121276 is an abundant number, since it is smaller than the sum of its proper divisors (1211611457908).

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

1147420121276 is a wasteful number, since it uses less digits than its factorization.

1147420121276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005979261 (or 2005979259 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

Adding to 1147420121276 its reverse (6721210247411), we get a palindrome (7868630368687).

The spelling of 1147420121276 in words is "one trillion, one hundred forty-seven billion, four hundred twenty million, one hundred twenty-one thousand, two hundred seventy-six".