1230220144 has 20 divisors (see below), whose sum is σ = 2394058824. Its totient is φ = 612398528.

The previous prime is 1230220111. The next prime is 1230220177. The reversal of 1230220144 is 4410220321.

It is an interprime number because it is at equal distance from previous prime (1230220111) and next prime (1230220177).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165727 + ... + 172990.

Almost surely, 2^1230220144 is an apocalyptic number.

It is an amenable number.

1230220144 is a deficient number, since it is larger than the sum of its proper divisors (1163838680).

1230220144 is a wasteful number, since it uses less digits than its factorization.

1230220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338952 (or 338946 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1230220144 is about 35074.4942087552. The cubic root of 1230220144 is about 1071.5051876572.

Adding to 1230220144 its reverse (4410220321), we get a palindrome (5640440465).

The spelling of 1230220144 in words is "one billion, two hundred thirty million, two hundred twenty thousand, one hundred forty-four".