1012001022013 has 4 divisors (see below), whose sum is σ = 1012076327548. Its totient is φ = 1011925716480.

The previous prime is 1012001022007. The next prime is 1012001022061. The reversal of 1012001022013 is 3102201002101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 689334988644 + 322666033369 = 830262^2 + 568037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012001022013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012001021984 and 1012001022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012001022413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37632606 + ... + 37659487.

It is an arithmetic number, because the mean of its divisors is an integer number (253019081887).

Almost surely, 2^{1012001022013} is an apocalyptic number.

It is an amenable number.

1012001022013 is a deficient number, since it is larger than the sum of its proper divisors (75305535).

1012001022013 is an equidigital number, since it uses as much as digits as its factorization.

1012001022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75305534.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1012001022013 its reverse (3102201002101), we get a palindrome (4114202024114).

The spelling of 1012001022013 in words is "one trillion, twelve billion, one million, twenty-two thousand, thirteen".