110972862356861 has 2 divisors, whose sum is σ = 110972862356862. Its totient is φ = 110972862356860.

The previous prime is 110972862356843. The next prime is 110972862356891. The reversal of 110972862356861 is 168653268279011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65596943449636 + 45375918907225 = 8099194^2 + 6736165^2 .

It is an emirp because it is prime and its reverse (168653268279011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110972862356861 - 2²⁶ = 110972795247997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110972862356891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55486431178430 + 55486431178431.

It is an arithmetic number, because the mean of its divisors is an integer number (55486431178431).

Almost surely, 2^{110972862356861} is an apocalyptic number.

It is an amenable number.

110972862356861 is a deficient number, since it is larger than the sum of its proper divisors (1).

110972862356861 is an equidigital number, since it uses as much as digits as its factorization.

110972862356861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52254720, while the sum is 65.

The spelling of 110972862356861 in words is "one hundred ten trillion, nine hundred seventy-two billion, eight hundred sixty-two million, three hundred fifty-six thousand, eight hundred sixty-one".