1121571605153 has 2 divisors, whose sum is σ = 1121571605154. Its totient is φ = 1121571605152.

The previous prime is 1121571605137. The next prime is 1121571605179. The reversal of 1121571605153 is 3515061751211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667608287329 + 453963317824 = 817073^2 + 673768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121571605153 - 2⁴ = 1121571605137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121571605953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560785802576 + 560785802577.

It is an arithmetic number, because the mean of its divisors is an integer number (560785802577).

Almost surely, 2^{1121571605153} is an apocalyptic number.

It is an amenable number.

1121571605153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121571605153 is an equidigital number, since it uses as much as digits as its factorization.

1121571605153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 38.

The spelling of 1121571605153 in words is "one trillion, one hundred twenty-one billion, five hundred seventy-one million, six hundred five thousand, one hundred fifty-three".