103902812217979 has 4 divisors (see below), whose sum is σ = 104061928316976. Its totient is φ = 103743696118984.

The previous prime is 103902812217977. The next prime is 103902812217989. The reversal of 103902812217979 is 979712218209301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103902812217979 - 2¹ = 103902812217977 is a prime.

It is a super-2 number, since 2×103902812217979² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103902812217977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79558048519 + ... + 79558049824.

It is an arithmetic number, because the mean of its divisors is an integer number (26015482079244).

Almost surely, 2^{103902812217979} is an apocalyptic number.

103902812217979 is a deficient number, since it is larger than the sum of its proper divisors (159116098997).

103902812217979 is an equidigital number, since it uses as much as digits as its factorization.

103902812217979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159116098996.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 103902812217979 in words is "one hundred three trillion, nine hundred two billion, eight hundred twelve million, two hundred seventeen thousand, nine hundred seventy-nine".