1001312010021 has 16 divisors (see below), whose sum is σ = 1354285745280. Its totient is φ = 657952162560.

The previous prime is 1001312010011. The next prime is 1001312010031. The reversal of 1001312010021 is 1200102131001.

It is an interprime number because it is at equal distance from previous prime (1001312010011) and next prime (1001312010031).

It is not a de Polignac number, because 1001312010021 - 2¹⁷ = 1001311878949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001312009979 and 1001312010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001312010011) 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, 1219281 + ... + 1867958.

It is an arithmetic number, because the mean of its divisors is an integer number (84642859080).

Almost surely, 2^{1001312010021} is an apocalyptic number.

It is an amenable number.

1001312010021 is a deficient number, since it is larger than the sum of its proper divisors (352973735259).

1001312010021 is a wasteful number, since it uses less digits than its factorization.

1001312010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088796.

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

Adding to 1001312010021 its reverse (1200102131001), we get a palindrome (2201414141022).

The spelling of 1001312010021 in words is "one trillion, one billion, three hundred twelve million, ten thousand, twenty-one".