1189949359103 has 8 divisors (see below), whose sum is σ = 1252601238000. Its totient is φ = 1127299776768.

The previous prime is 1189949359099. The next prime is 1189949359121. The reversal of 1189949359103 is 3019539499811.

It is a Cunningham number, because it is equal to 1090848²-1.

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 1189949359103 - 2² = 1189949359099 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 (1189949350103) 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, 545423 + ... + 1636271.

It is an arithmetic number, because the mean of its divisors is an integer number (156575154750).

Almost surely, 2^{1189949359103} is an apocalyptic number.

1189949359103 is a deficient number, since it is larger than the sum of its proper divisors (62651878897).

1189949359103 is a wasteful number, since it uses less digits than its factorization.

1189949359103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148281.

The product of its (nonzero) digits is 9447840, while the sum is 62.

The spelling of 1189949359103 in words is "one trillion, one hundred eighty-nine billion, nine hundred forty-nine million, three hundred fifty-nine thousand, one hundred three".