1015111341200 has 240 divisors, whose sum is σ = 2734431860160. Its totient is φ = 358935552000.

The previous prime is 1015111341191. The next prime is 1015111341217. The reversal of 1015111341200 is 21431115101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55373636 + ... + 55391964.

It is an arithmetic number, because the mean of its divisors is an integer number (11393466084).

Almost surely, 2^{1015111341200} is an apocalyptic number.

1015111341200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1015111341200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367215930080).

1015111341200 is an abundant number, since it is smaller than the sum of its proper divisors (1719320518960).

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

1015111341200 is a wasteful number, since it uses less digits than its factorization.

1015111341200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18706 (or 18695 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 1015111341200 its reverse (21431115101), we get a palindrome (1036542456301).

The spelling of 1015111341200 in words is "one trillion, fifteen billion, one hundred eleven million, three hundred forty-one thousand, two hundred".