110172121537 has 2 divisors, whose sum is σ = 110172121538. Its totient is φ = 110172121536.

The previous prime is 110172121529. The next prime is 110172121613. The reversal of 110172121537 is 735121271011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105108233616 + 5063887921 = 324204^2 + 71161^2 .

It is a cyclic number.

It is not a de Polignac number, because 110172121537 - 2³ = 110172121529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110172121499 and 110172121508.

It is not a weakly prime, because it can be changed into another prime (110172121237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55086060768 + 55086060769.

It is an arithmetic number, because the mean of its divisors is an integer number (55086060769).

Almost surely, 2^110172121537 is an apocalyptic number.

It is an amenable number.

110172121537 is a deficient number, since it is larger than the sum of its proper divisors (1).

110172121537 is an equidigital number, since it uses as much as digits as its factorization.

110172121537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 31.

Adding to 110172121537 its reverse (735121271011), we get a palindrome (845293392548).

The spelling of 110172121537 in words is "one hundred ten billion, one hundred seventy-two million, one hundred twenty-one thousand, five hundred thirty-seven".