1021301140 has 12 divisors (see below), whose sum is σ = 2144732436. Its totient is φ = 408520448.

The previous prime is 1021301123. The next prime is 1021301143. The reversal of 1021301140 is 411031201.

It can be written as a sum of positive squares in 2 ways, for example, as 604569744 + 416731396 = 24588^2 + 20414^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1021301140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021301143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25532509 + ... + 25532548.

It is an arithmetic number, because the mean of its divisors is an integer number (178727703).

Almost surely, 2^1021301140 is an apocalyptic number.

1021301140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021301140 is an abundant number, since it is smaller than the sum of its proper divisors (1123431296).

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

1021301140 is a wasteful number, since it uses less digits than its factorization.

1021301140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51065066 (or 51065064 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1021301140 is about 31957.8024901588. The cubic root of 1021301140 is about 1007.0505528758.

Adding to 1021301140 its reverse (411031201), we get a palindrome (1432332341).

The spelling of 1021301140 in words is "one billion, twenty-one million, three hundred one thousand, one hundred forty".