1215115044030 has 128 divisors (see below), whose sum is σ = 3412601280000. Its totient is φ = 306818751744.

The previous prime is 1215115043977. The next prime is 1215115044041. The reversal of 1215115044030 is 304405115121.

1215115044030 is a `hidden beast` number, since 1 + 2 + 151 + 1 + 504 + 4 + 0 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1215115043985 and 1215115044003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10092426 + ... + 10212114.

It is an arithmetic number, because the mean of its divisors is an integer number (26660947500).

Almost surely, 2^{1215115044030} is an apocalyptic number.

1215115044030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215115044030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706300640000).

1215115044030 is an abundant number, since it is smaller than the sum of its proper divisors (2197486235970).

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

1215115044030 is a wasteful number, since it uses less digits than its factorization.

1215115044030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121703 (or 121697 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 1215115044030 in words is "one trillion, two hundred fifteen billion, one hundred fifteen million, forty-four thousand, thirty".