1210020241140 has 144 divisors (see below), whose sum is σ = 3694427283456. Its totient is φ = 320566118400.

The previous prime is 1210020241103. The next prime is 1210020241141. The reversal of 1210020241140 is 411420200121.

1210020241140 is a `hidden beast` number, since 1 + 2 + 10 + 0 + 202 + 411 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210020241141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17184205 + ... + 17254475.

It is an arithmetic number, because the mean of its divisors is an integer number (25655745024).

Almost surely, 2^{1210020241140} is an apocalyptic number.

1210020241140 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 1210020241140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847213641728).

1210020241140 is an abundant number, since it is smaller than the sum of its proper divisors (2484407042316).

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

1210020241140 is a wasteful number, since it uses less digits than its factorization.

1210020241140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70910 (or 70905 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1210020241140 its reverse (411420200121), we get a palindrome (1621440441261).

The spelling of 1210020241140 in words is "one trillion, two hundred ten billion, twenty million, two hundred forty-one thousand, one hundred forty".