1131211010111 has 32 divisors (see below), whose sum is σ = 1407396816000. Its totient is φ = 885310156800.

The previous prime is 1131211010101. The next prime is 1131211010203. The reversal of 1131211010111 is 1110101121311.

It is a cyclic number.

It is not a de Polignac number, because 1131211010111 - 2¹⁰ = 1131211009087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131211010101) 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, 9582695 + ... + 9700023.

It is an arithmetic number, because the mean of its divisors is an integer number (43981150500).

Almost surely, 2^{1131211010111} is an apocalyptic number.

1131211010111 is a deficient number, since it is larger than the sum of its proper divisors (276185805889).

1131211010111 is a wasteful number, since it uses less digits than its factorization.

1131211010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118499.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 1131211010111 its reverse (1110101121311), we get a palindrome (2241312131422).

The spelling of 1131211010111 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, ten thousand, one hundred eleven".