1042121195 has 4 divisors (see below), whose sum is σ = 1250545440. Its totient is φ = 833696952.

The previous prime is 1042121183. The next prime is 1042121207. The reversal of 1042121195 is 5911212401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5911212401 = 31 ⋅190684271.

It is an interprime number because it is at equal distance from previous prime (1042121183) and next prime (1042121207).

It is a cyclic number.

It is not a de Polignac number, because 1042121195 - 2²⁰ = 1041072619 is a prime.

It is a super-5 number, since 5×1042121195⁵ (a number of 46 digits) contains 55555 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104212115 + ... + 104212124.

It is an arithmetic number, because the mean of its divisors is an integer number (312636360).

Almost surely, 2^1042121195 is an apocalyptic number.

1042121195 is a deficient number, since it is larger than the sum of its proper divisors (208424245).

1042121195 is an equidigital number, since it uses as much as digits as its factorization.

1042121195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208424244.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1042121195 is about 32281.9019730870. The cubic root of 1042121195 is about 1013.8477529228.

Adding to 1042121195 its reverse (5911212401), we get a palindrome (6953333596).

The spelling of 1042121195 in words is "one billion, forty-two million, one hundred twenty-one thousand, one hundred ninety-five".