1121780426527 has 2 divisors, whose sum is σ = 1121780426528. Its totient is φ = 1121780426526.

The previous prime is 1121780426491. The next prime is 1121780426549. The reversal of 1121780426527 is 7256240871211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121780426527 - 2¹⁵ = 1121780393759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121780426027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560890213263 + 560890213264.

It is an arithmetic number, because the mean of its divisors is an integer number (560890213264).

Almost surely, 2^{1121780426527} is an apocalyptic number.

1121780426527 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121780426527 is an equidigital number, since it uses as much as digits as its factorization.

1121780426527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 1121780426527 in words is "one trillion, one hundred twenty-one billion, seven hundred eighty million, four hundred twenty-six thousand, five hundred twenty-seven".