11597861123 has 2 divisors, whose sum is σ = 11597861124. Its totient is φ = 11597861122.

The previous prime is 11597861089. The next prime is 11597861137. The reversal of 11597861123 is 32116879511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11597861123 - 2¹² = 11597857027 is a prime.

It is a super-2 number, since 2×11597861123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11597861323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5798930561 + 5798930562.

It is an arithmetic number, because the mean of its divisors is an integer number (5798930562).

Almost surely, 2^11597861123 is an apocalyptic number.

11597861123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11597861123 is an equidigital number, since it uses as much as digits as its factorization.

11597861123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 44.

The spelling of 11597861123 in words is "eleven billion, five hundred ninety-seven million, eight hundred sixty-one thousand, one hundred twenty-three".