1200121023308 has 24 divisors (see below), whose sum is σ = 2103159240000. Its totient is φ = 599218933248.

The previous prime is 1200121023281. The next prime is 1200121023341. The reversal of 1200121023308 is 8033201210021.

It is a happy number.

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, 8864348 + ... + 8998716.

It is an arithmetic number, because the mean of its divisors is an integer number (87631635000).

Almost surely, 2^{1200121023308} is an apocalyptic number.

It is an amenable number.

1200121023308 is a deficient number, since it is larger than the sum of its proper divisors (903038216692).

1200121023308 is a wasteful number, since it uses less digits than its factorization.

1200121023308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137489 (or 137487 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1200121023308 its reverse (8033201210021), we get a palindrome (9233322233329).

The spelling of 1200121023308 in words is "one trillion, two hundred billion, one hundred twenty-one million, twenty-three thousand, three hundred eight".