1011200312111 has 32 divisors (see below), whose sum is σ = 1113722265600. Its totient is φ = 910498740480.

The previous prime is 1011200312099. The next prime is 1011200312113. The reversal of 1011200312111 is 1112130021101.

It is a cyclic number.

It is not a de Polignac number, because 1011200312111 - 2²² = 1011196117807 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 (1011200312113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 628464275 + ... + 628465883.

It is an arithmetic number, because the mean of its divisors is an integer number (34803820800).

Almost surely, 2^{1011200312111} is an apocalyptic number.

1011200312111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1011200312111 is a deficient number, since it is larger than the sum of its proper divisors (102521953489).

1011200312111 is a wasteful number, since it uses less digits than its factorization.

1011200312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1011200312111 its reverse (1112130021101), we get a palindrome (2123330333212).

The spelling of 1011200312111 in words is "one trillion, eleven billion, two hundred million, three hundred twelve thousand, one hundred eleven".