109134336881 has 2 divisors, whose sum is σ = 109134336882. Its totient is φ = 109134336880.

The previous prime is 109134336877. The next prime is 109134336931. The reversal of 109134336881 is 188633431901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82708583281 + 26425753600 = 287591^2 + 162560^2 .

It is a cyclic number.

It is not a de Polignac number, because 109134336881 - 2² = 109134336877 is a prime.

It is a super-2 number, since 2×109134336881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109134336821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54567168440 + 54567168441.

It is an arithmetic number, because the mean of its divisors is an integer number (54567168441).

Almost surely, 2^109134336881 is an apocalyptic number.

It is an amenable number.

109134336881 is a deficient number, since it is larger than the sum of its proper divisors (1).

109134336881 is an equidigital number, since it uses as much as digits as its factorization.

109134336881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 109134336881 in words is "one hundred nine billion, one hundred thirty-four million, three hundred thirty-six thousand, eight hundred eighty-one".