1321125119 has 8 divisors (see below), whose sum is σ = 1394672640. Its totient is φ = 1247979096.

The previous prime is 1321125089. The next prime is 1321125121. The reversal of 1321125119 is 9115211231.

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 1321125119 - 2¹² = 1321121023 is a prime.

It is a super-2 number, since 2×1321125119² = 3490743160105528322, which 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 (1321125919) 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, 93599 + ... + 106784.

It is an arithmetic number, because the mean of its divisors is an integer number (174334080).

Almost surely, 2^1321125119 is an apocalyptic number.

1321125119 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1321125119 is a deficient number, since it is larger than the sum of its proper divisors (73547521).

1321125119 is a wasteful number, since it uses less digits than its factorization.

1321125119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200749.

The product of its digits is 540, while the sum is 26.

The square root of 1321125119 is about 36347.2848917220. The cubic root of 1321125119 is about 1097.2728916767.

The spelling of 1321125119 in words is "one billion, three hundred twenty-one million, one hundred twenty-five thousand, one hundred nineteen".