103778253623 has 4 divisors (see below), whose sum is σ = 113212640328. Its totient is φ = 94343866920.

The previous prime is 103778253571. The next prime is 103778253643. The reversal of 103778253623 is 326352877301.

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 103778253623 - 2⁸ = 103778253367 is a prime.

It is a super-2 number, since 2×103778253623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103778253643) 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, 4717193336 + ... + 4717193357.

It is an arithmetic number, because the mean of its divisors is an integer number (28303160082).

Almost surely, 2^103778253623 is an apocalyptic number.

103778253623 is a deficient number, since it is larger than the sum of its proper divisors (9434386705).

103778253623 is an equidigital number, since it uses as much as digits as its factorization.

103778253623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9434386704.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 103778253623 in words is "one hundred three billion, seven hundred seventy-eight million, two hundred fifty-three thousand, six hundred twenty-three".