1111120121131 has 4 divisors (see below), whose sum is σ = 1136960123992. Its totient is φ = 1085280118272.

The previous prime is 1111120121117. The next prime is 1111120121149. The reversal of 1111120121131 is 1311210211111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111120121131 - 2⁷ = 1111120121003 is a prime.

It is a super-2 number, since 2×1111120121131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111120121101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12920001366 + ... + 12920001451.

It is an arithmetic number, because the mean of its divisors is an integer number (284240030998).

Almost surely, 2^{1111120121131} is an apocalyptic number.

1111120121131 is a deficient number, since it is larger than the sum of its proper divisors (25840002861).

1111120121131 is an equidigital number, since it uses as much as digits as its factorization.

1111120121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25840002860.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1111120121131 its reverse (1311210211111), we get a palindrome (2422330332242).

The spelling of 1111120121131 in words is "one trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty-one thousand, one hundred thirty-one".