1021312041321 has 16 divisors (see below), whose sum is σ = 1599817464000. Its totient is φ = 571363379520.

The previous prime is 1021312041311. The next prime is 1021312041359. The reversal of 1021312041321 is 1231402131201.

1021312041321 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021312041321 - 2⁷ = 1021312041193 is a prime.

It is a super-2 number, since 2×1021312041321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021312041311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190339946 + ... + 1190340803.

It is an arithmetic number, because the mean of its divisors is an integer number (99988591500).

Almost surely, 2^{1021312041321} is an apocalyptic number.

1021312041321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1021312041321 is a deficient number, since it is larger than the sum of its proper divisors (578505422679).

1021312041321 is a wasteful number, since it uses less digits than its factorization.

1021312041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380680776.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1021312041321 its reverse (1231402131201), we get a palindrome (2252714172522).

The spelling of 1021312041321 in words is "one trillion, twenty-one billion, three hundred twelve million, forty-one thousand, three hundred twenty-one".