1121138161477 has 2 divisors, whose sum is σ = 1121138161478. Its totient is φ = 1121138161476.

The previous prime is 1121138161471. The next prime is 1121138161531. The reversal of 1121138161477 is 7741618311211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110412245121 + 10725916356 = 1053761^2 + 103566^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121138161477 - 2³⁵ = 1086778423109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121138161471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560569080738 + 560569080739.

It is an arithmetic number, because the mean of its divisors is an integer number (560569080739).

Almost surely, 2^{1121138161477} is an apocalyptic number.

It is an amenable number.

1121138161477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121138161477 is an equidigital number, since it uses as much as digits as its factorization.

1121138161477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 43.

The spelling of 1121138161477 in words is "one trillion, one hundred twenty-one billion, one hundred thirty-eight million, one hundred sixty-one thousand, four hundred seventy-seven".