1011211131133 has 16 divisors (see below), whose sum is σ = 1166536235520. Its totient is φ = 858603533616.

The previous prime is 1011211131109. The next prime is 1011211131157. The reversal of 1011211131133 is 3311311121101.

It is an interprime number because it is at equal distance from previous prime (1011211131109) and next prime (1011211131157).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011211131133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011211131133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011211131193) 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 15 ways as a sum of consecutive naturals, for example, 21112110 + ... + 21159952.

It is an arithmetic number, because the mean of its divisors is an integer number (72908514720).

Almost surely, 2^{1011211131133} is an apocalyptic number.

It is an amenable number.

1011211131133 is a deficient number, since it is larger than the sum of its proper divisors (155325104387).

1011211131133 is a wasteful number, since it uses less digits than its factorization.

1011211131133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76176.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1011211131133 its reverse (3311311121101), we get a palindrome (4322522252234).

The spelling of 1011211131133 in words is "one trillion, eleven billion, two hundred eleven million, one hundred thirty-one thousand, one hundred thirty-three".