1200031111113 has 16 divisors (see below), whose sum is σ = 1607294631936. Its totient is φ = 796394514960.

The previous prime is 1200031111079. The next prime is 1200031111121. The reversal of 1200031111113 is 3111111300021.

It is not a de Polignac number, because 1200031111113 - 2¹² = 1200031107017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200031111092 and 1200031111101.

It is not an unprimeable number, because it can be changed into a prime (1200031111133) 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, 22282248 + ... + 22336038.

It is an arithmetic number, because the mean of its divisors is an integer number (100455914496).

Almost surely, 2^{1200031111113} is an apocalyptic number.

It is an amenable number.

1200031111113 is a deficient number, since it is larger than the sum of its proper divisors (407263520823).

1200031111113 is a wasteful number, since it uses less digits than its factorization.

1200031111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87364.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1200031111113 its reverse (3111111300021), we get a palindrome (4311142411134).

The spelling of 1200031111113 in words is "one trillion, two hundred billion, thirty-one million, one hundred eleven thousand, one hundred thirteen".