11331123221097 has 40 divisors (see below), whose sum is σ = 17044763373000. Its totient is φ = 7501436718336.

The previous prime is 11331123221039. The next prime is 11331123221101. The reversal of 11331123221097 is 79012232113311.

11331123221097 is a `hidden beast` number, since 1 + 1 + 3 + 311 + 2 + 322 + 10 + 9 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3303029995776 + 8028093225321 = 1817424^2 + 2833389^2 .

It is not a de Polignac number, because 11331123221097 - 2¹⁰ = 11331123220073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11331123221497) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47154429 + ... + 47394117.

It is an arithmetic number, because the mean of its divisors is an integer number (426119084325).

Almost surely, 2^{11331123221097} is an apocalyptic number.

It is an amenable number.

11331123221097 is a deficient number, since it is larger than the sum of its proper divisors (5713640151903).

11331123221097 is a wasteful number, since it uses less digits than its factorization.

11331123221097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243767 (or 243758 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 11331123221097 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-three million, two hundred twenty-one thousand, ninety-seven".