1121234104421 has 2 divisors, whose sum is σ = 1121234104422. Its totient is φ = 1121234104420.

The previous prime is 1121234104381. The next prime is 1121234104427. The reversal of 1121234104421 is 1244014321211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582228515521 + 539005588900 = 763039^2 + 734170^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121234104421 - 2²² = 1121229910117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121234104427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560617052210 + 560617052211.

It is an arithmetic number, because the mean of its divisors is an integer number (560617052211).

Almost surely, 2^{1121234104421} is an apocalyptic number.

It is an amenable number.

1121234104421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121234104421 is an equidigital number, since it uses as much as digits as its factorization.

1121234104421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 1121234104421 its reverse (1244014321211), we get a palindrome (2365248425632).

The spelling of 1121234104421 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-four million, one hundred four thousand, four hundred twenty-one".