1200000032311 has 32 divisors (see below), whose sum is σ = 1301134363200. Its totient is φ = 1104449310720.

The previous prime is 1200000032249. The next prime is 1200000032317. The reversal of 1200000032311 is 1132300000021.

It is a cyclic number.

It is not a de Polignac number, because 1200000032311 - 2¹⁹ = 1199999508023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200000032291 and 1200000032300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200000032317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9222675 + ... + 9351883.

It is an arithmetic number, because the mean of its divisors is an integer number (40660448850).

Almost surely, 2^{1200000032311} is an apocalyptic number.

1200000032311 is a deficient number, since it is larger than the sum of its proper divisors (101134330889).

1200000032311 is a wasteful number, since it uses less digits than its factorization.

1200000032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129459.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1200000032311 its reverse (1132300000021), we get a palindrome (2332300032332).

The spelling of 1200000032311 in words is "one trillion, two hundred billion, thirty-two thousand, three hundred eleven".