1121131890029 has 2 divisors, whose sum is σ = 1121131890030. Its totient is φ = 1121131890028.

The previous prime is 1121131890013. The next prime is 1121131890031. The reversal of 1121131890029 is 9200981311211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 749086788004 + 372045102025 = 865498^2 + 609955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121131890029 - 2⁴ = 1121131890013 is a prime.

Together with 1121131890031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121131889974 and 1121131890001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121131800029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560565945014 + 560565945015.

It is an arithmetic number, because the mean of its divisors is an integer number (560565945015).

Almost surely, 2^{1121131890029} is an apocalyptic number.

It is an amenable number.

1121131890029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121131890029 is an equidigital number, since it uses as much as digits as its factorization.

1121131890029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 38.

The spelling of 1121131890029 in words is "one trillion, one hundred twenty-one billion, one hundred thirty-one million, eight hundred ninety thousand, twenty-nine".