1212103230 has 64 divisors (see below), whose sum is σ = 3317122368. Its totient is φ = 280811520.

The previous prime is 1212103223. The next prime is 1212103237. The reversal of 1212103230 is 323012121.

It is an interprime number because it is at equal distance from previous prime (1212103223) and next prime (1212103237).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212103237) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 84781 + ... + 98040.

It is an arithmetic number, because the mean of its divisors is an integer number (51830037).

Almost surely, 2^1212103230 is an apocalyptic number.

1212103230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212103230 is an abundant number, since it is smaller than the sum of its proper divisors (2105019138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212103230 is a wasteful number, since it uses less digits than its factorization.

1212103230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182861.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1212103230 is about 34815.2729416272. The cubic root of 1212103230 is about 1066.2192916660.

Adding to 1212103230 its reverse (323012121), we get a palindrome (1535115351).

The spelling of 1212103230 in words is "one billion, two hundred twelve million, one hundred three thousand, two hundred thirty".