1011332540250 has 128 divisors (see below), whose sum is σ = 2805886137600. Its totient is φ = 269580614400.

The previous prime is 1011332540177. The next prime is 1011332540287. The reversal of 1011332540250 is 520452331101.

1011332540250 is a `hidden beast` number, since 1 + 0 + 113 + 3 + 2 + 540 + 2 + 5 + 0 = 666.

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

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, 17582037 + ... + 17639463.

It is an arithmetic number, because the mean of its divisors is an integer number (21920985450).

Almost surely, 2^{1011332540250} is an apocalyptic number.

1011332540250 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 1011332540250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1402943068800).

1011332540250 is an abundant number, since it is smaller than the sum of its proper divisors (1794553597350).

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

1011332540250 is a wasteful number, since it uses less digits than its factorization.

1011332540250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60062 (or 60046 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1011332540250 its reverse (520452331101), we get a palindrome (1531784871351).

The spelling of 1011332540250 in words is "one trillion, eleven billion, three hundred thirty-two million, five hundred forty thousand, two hundred fifty".