1000021001311 has 8 divisors (see below), whose sum is σ = 1058855048064. Its totient is φ = 941187985920.

The previous prime is 1000021001303. The next prime is 1000021001381. The reversal of 1000021001311 is 1131001200001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000021001311 - 2³ = 1000021001303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021001381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2723346 + ... + 3068656.

It is an arithmetic number, because the mean of its divisors is an integer number (132356881008).

Almost surely, 2^{1000021001311} is an apocalyptic number.

1000021001311 is a deficient number, since it is larger than the sum of its proper divisors (58834046753).

1000021001311 is a wasteful number, since it uses less digits than its factorization.

1000021001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515681.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1000021001311 its reverse (1131001200001), we get a palindrome (2131022201312).

The spelling of 1000021001311 in words is "one trillion, twenty-one million, one thousand, three hundred eleven".