1200120331213 has 16 divisors (see below), whose sum is σ = 1250400044160. Its totient is φ = 1150441992000.

The previous prime is 1200120331187. The next prime is 1200120331219. The reversal of 1200120331213 is 3121330210021.

It is a cyclic number.

It is not a de Polignac number, because 1200120331213 - 2³⁷ = 1062681377741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200120331219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8146378 + ... + 8292388.

It is an arithmetic number, because the mean of its divisors is an integer number (78150002760).

Almost surely, 2^{1200120331213} is an apocalyptic number.

It is an amenable number.

1200120331213 is a deficient number, since it is larger than the sum of its proper divisors (50279712947).

1200120331213 is a wasteful number, since it uses less digits than its factorization.

1200120331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148068.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200120331213 its reverse (3121330210021), we get a palindrome (4321450541234).

The spelling of 1200120331213 in words is "one trillion, two hundred billion, one hundred twenty million, three hundred thirty-one thousand, two hundred thirteen".