1121011110251 has 2 divisors, whose sum is σ = 1121011110252. Its totient is φ = 1121011110250.

The previous prime is 1121011110181. The next prime is 1121011110301. The reversal of 1121011110251 is 1520111101211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121011110251 - 2³⁴ = 1103831241067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121211110251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560505555125 + 560505555126.

It is an arithmetic number, because the mean of its divisors is an integer number (560505555126).

Almost surely, 2^{1121011110251} is an apocalyptic number.

1121011110251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121011110251 is an equidigital number, since it uses as much as digits as its factorization.

1121011110251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 17.

Adding to 1121011110251 its reverse (1520111101211), we get a palindrome (2641122211462).

The spelling of 1121011110251 in words is "one trillion, one hundred twenty-one billion, eleven million, one hundred ten thousand, two hundred fifty-one".