1125921369511 has 2 divisors, whose sum is σ = 1125921369512. Its totient is φ = 1125921369510.

The previous prime is 1125921369479. The next prime is 1125921369523. The reversal of 1125921369511 is 1159631295211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1125921369511 - 2⁵ = 1125921369479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125921369581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562960684755 + 562960684756.

It is an arithmetic number, because the mean of its divisors is an integer number (562960684756).

Almost surely, 2^{1125921369511} is an apocalyptic number.

1125921369511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125921369511 is an equidigital number, since it uses as much as digits as its factorization.

1125921369511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 46.

The spelling of 1125921369511 in words is "one trillion, one hundred twenty-five billion, nine hundred twenty-one million, three hundred sixty-nine thousand, five hundred eleven".