109517312356 has 27 divisors (see below), whose sum is σ = 192617989977. Its totient is φ = 54484973760.

The previous prime is 109517312351. The next prime is 109517312369. The reversal of 109517312356 is 653213715901.

The square root of 109517312356 is 330934.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 29532422500 + 79984889856 = 171850^2 + 282816^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109517312351) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 223049271 + ... + 223049761.

Almost surely, 2^109517312356 is an apocalyptic number.

109517312356 is the 330934-th square number.

It is an amenable number.

109517312356 is a deficient number, since it is larger than the sum of its proper divisors (83100677621).

109517312356 is an frugal number, since it uses more digits than its factorization.

109517312356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 43.

The spelling of 109517312356 in words is "one hundred nine billion, five hundred seventeen million, three hundred twelve thousand, three hundred fifty-six".