1200112121231 has 8 divisors (see below), whose sum is σ = 1211371248384. Its totient is φ = 1188853792920.

The previous prime is 1200112121213. The next prime is 1200112121303. The reversal of 1200112121231 is 1321212110021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200112121231 is a prime.

It is a super-2 number, since 2×1200112121231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200112121531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3068666 + ... + 3437576.

It is an arithmetic number, because the mean of its divisors is an integer number (151421406048).

Almost surely, 2^{1200112121231} is an apocalyptic number.

1200112121231 is a deficient number, since it is larger than the sum of its proper divisors (11259127153).

1200112121231 is a wasteful number, since it uses less digits than its factorization.

1200112121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399421.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1200112121231 its reverse (1321212110021), we get a palindrome (2521324231252).

The spelling of 1200112121231 in words is "one trillion, two hundred billion, one hundred twelve million, one hundred twenty-one thousand, two hundred thirty-one".