1230120219 has 16 divisors (see below), whose sum is σ = 1648894464. Its totient is φ = 815724000.

The previous prime is 1230120209. The next prime is 1230120223. The reversal of 1230120219 is 9120210321.

It is not a de Polignac number, because 1230120219 - 2¹¹ = 1230118171 is a prime.

It is a super-2 number, since 2×1230120219² = 3026391506385215922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1230120195 and 1230120204.

It is not an unprimeable number, because it can be changed into a prime (1230120209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944869 + ... + 946169.

It is an arithmetic number, because the mean of its divisors is an integer number (103055904).

Almost surely, 2^1230120219 is an apocalyptic number.

1230120219 is a deficient number, since it is larger than the sum of its proper divisors (418774245).

1230120219 is a wasteful number, since it uses less digits than its factorization.

1230120219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1230120219 is about 35073.0697116748. The cubic root of 1230120219 is about 1071.4761757617.

The spelling of 1230120219 in words is "one billion, two hundred thirty million, one hundred twenty thousand, two hundred nineteen".