1103817632381 has 4 divisors (see below), whose sum is σ = 1104076809600. Its totient is φ = 1103558455164.

The previous prime is 1103817632293. The next prime is 1103817632399. The reversal of 1103817632381 is 1832367183011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1103817632381 - 2¹⁸ = 1103817370237 is a prime.

It is a super-2 number, since 2×1103817632381² (a number of 25 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 (1103817652381) 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, 129582221 + ... + 129590738.

It is an arithmetic number, because the mean of its divisors is an integer number (276019202400).

Almost surely, 2^{1103817632381} is an apocalyptic number.

It is an amenable number.

1103817632381 is a deficient number, since it is larger than the sum of its proper divisors (259177219).

1103817632381 is an equidigital number, since it uses as much as digits as its factorization.

1103817632381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259177218.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 1103817632381 in words is "one trillion, one hundred three billion, eight hundred seventeen million, six hundred thirty-two thousand, three hundred eighty-one".