1121399095 has 8 divisors (see below), whose sum is σ = 1416504240. Its totient is φ = 849902400.

The previous prime is 1121399089. The next prime is 1121399099. The reversal of 1121399095 is 5909931211.

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

It is not a de Polignac number, because 1121399095 - 2⁹ = 1121398583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121399099) 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, 5902006 + ... + 5902195.

It is an arithmetic number, because the mean of its divisors is an integer number (177063030).

Almost surely, 2^1121399095 is an apocalyptic number.

1121399095 is a deficient number, since it is larger than the sum of its proper divisors (295105145).

1121399095 is a wasteful number, since it uses less digits than its factorization.

1121399095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11804225.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 1121399095 is about 33487.2975171183. The cubic root of 1121399095 is about 1038.9310685603.

The spelling of 1121399095 in words is "one billion, one hundred twenty-one million, three hundred ninety-nine thousand, ninety-five".