7981103101 has 8 divisors (see below), whose sum is σ = 8459692920. Its totient is φ = 7503525888.

The previous prime is 7981103087. The next prime is 7981103147. The reversal of 7981103101 is 1013011897.

7981103101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 82337476 + 7898765625 = 9074^2 + 88875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7981103101 - 2⁵ = 7981103069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7981103701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236886 + ... + 268471.

It is an arithmetic number, because the mean of its divisors is an integer number (1057461615).

Almost surely, 2^7981103101 is an apocalyptic number.

It is an amenable number.

7981103101 is a deficient number, since it is larger than the sum of its proper divisors (478589819).

7981103101 is a wasteful number, since it uses less digits than its factorization.

7981103101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506303.

The product of its (nonzero) digits is 1512, while the sum is 31.

The square root of 7981103101 is about 89337.0197678432. The cubic root of 7981103101 is about 1998.4240168815.

Adding to 7981103101 its reverse (1013011897), we get a palindrome (8994114998).

The spelling of 7981103101 in words is "seven billion, nine hundred eighty-one million, one hundred three thousand, one hundred one".