1012101321 has 24 divisors (see below), whose sum is σ = 1712500704. Its totient is φ = 525766080.

The previous prime is 1012101319. The next prime is 1012101331. The reversal of 1012101321 is 1231012101.

1012101321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1012101321 - 2¹ = 1012101319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012101297 and 1012101306.

It is not an unprimeable number, because it can be changed into a prime (1012101301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311340 + ... + 314573.

It is an arithmetic number, because the mean of its divisors is an integer number (71354196).

Almost surely, 2^1012101321 is an apocalyptic number.

1012101321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012101321 is a deficient number, since it is larger than the sum of its proper divisors (700399383).

1012101321 is a wasteful number, since it uses less digits than its factorization.

1012101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625941 (or 625934 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1012101321 is about 31813.5399004889. The cubic root of 1012101321 is about 1004.0176108533.

Adding to 1012101321 its reverse (1231012101), we get a palindrome (2243113422).

The spelling of 1012101321 in words is "one billion, twelve million, one hundred one thousand, three hundred twenty-one".