1215412120030 has 48 divisors (see below), whose sum is σ = 2324240462880. Its totient is φ = 457520076288.

The previous prime is 1215412119989. The next prime is 1215412120051. The reversal of 1215412120030 is 300212145121.

It is a junction number, because it is equal to n+sod(n) for n = 1215412119983 and 1215412120010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43286836 + ... + 43314904.

It is an arithmetic number, because the mean of its divisors is an integer number (48421676310).

Almost surely, 2^{1215412120030} is an apocalyptic number.

1215412120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215412120030 is a deficient number, since it is larger than the sum of its proper divisors (1108828342850).

1215412120030 is a wasteful number, since it uses less digits than its factorization.

1215412120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43093 (or 43076 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 1215412120030 its reverse (300212145121), we get a palindrome (1515624265151).

The spelling of 1215412120030 in words is "one trillion, two hundred fifteen billion, four hundred twelve million, one hundred twenty thousand, thirty".