1111211011131 has 16 divisors (see below), whose sum is σ = 1613512968480. Its totient is φ = 676138763520.

The previous prime is 1111211011123. The next prime is 1111211011151. The reversal of 1111211011131 is 1311101121111.

It is a happy number.

It is not a de Polignac number, because 1111211011131 - 2³ = 1111211011123 is a prime.

It is a super-2 number, since 2×1111211011131² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111211011131.

It is not an unprimeable number, because it can be changed into a prime (1111211011151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160067260 + ... + 160074201.

It is an arithmetic number, because the mean of its divisors is an integer number (100844560530).

Almost surely, 2^{1111211011131} is an apocalyptic number.

1111211011131 is a deficient number, since it is larger than the sum of its proper divisors (502301957349).

1111211011131 is a wasteful number, since it uses less digits than its factorization.

1111211011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320141566.

The product of its (nonzero) digits is 6, while the sum is 15.

Adding to 1111211011131 its reverse (1311101121111), we get a palindrome (2422312132242).

The spelling of 1111211011131 in words is "one trillion, one hundred eleven billion, two hundred eleven million, eleven thousand, one hundred thirty-one".