1021231011140 has 48 divisors (see below), whose sum is σ = 2272475544192. Its totient is φ = 384169115136.

The previous prime is 1021231011113. The next prime is 1021231011149. The reversal of 1021231011140 is 411101321201.

It is a super-2 number, since 2×1021231011140² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1021231011149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 704672 + ... + 1593431.

It is an arithmetic number, because the mean of its divisors is an integer number (47343240504).

Almost surely, 2^{1021231011140} is an apocalyptic number.

1021231011140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021231011140 is an abundant number, since it is smaller than the sum of its proper divisors (1251244533052).

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

1021231011140 is a wasteful number, since it uses less digits than its factorization.

1021231011140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299436 (or 2299434 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1021231011140 its reverse (411101321201), we get a palindrome (1432332332341).

The spelling of 1021231011140 in words is "one trillion, twenty-one billion, two hundred thirty-one million, eleven thousand, one hundred forty".