1111121030131 has 4 divisors (see below), whose sum is σ = 1269852605872. Its totient is φ = 952389454392.

The previous prime is 1111121030093. The next prime is 1111121030137. The reversal of 1111121030131 is 1310301211111.

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 1111121030131 - 2¹³ = 1111121021939 is a prime.

It is a super-2 number, since 2×1111121030131² (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 (1111121030137) 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, 79365787860 + ... + 79365787873.

It is an arithmetic number, because the mean of its divisors is an integer number (317463151468).

Almost surely, 2^{1111121030131} is an apocalyptic number.

1111121030131 is a deficient number, since it is larger than the sum of its proper divisors (158731575741).

1111121030131 is an equidigital number, since it uses as much as digits as its factorization.

1111121030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158731575740.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 1111121030131 its reverse (1310301211111), we get a palindrome (2421422241242).

The spelling of 1111121030131 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, thirty thousand, one hundred thirty-one".