2001021340410 has 48 divisors (see below), whose sum is σ = 5220412057224. Its totient is φ = 531784503936.

The previous prime is 2001021340393. The next prime is 2001021340457. The reversal of 2001021340410 is 140431201002.

2001021340410 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 0 + 213 + 40 + 410 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1411294104441 + 589727235969 = 1187979^2 + 767937^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37914877 + ... + 37967616.

Almost surely, 2^{2001021340410} is an apocalyptic number.

2001021340410 is an abundant number, since it is smaller than the sum of its proper divisors (3219390716814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001021340410 is a wasteful number, since it uses less digits than its factorization.

2001021340410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75882799 (or 75882796 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2001021340410 its reverse (140431201002), we get a palindrome (2141452541412).

The spelling of 2001021340410 in words is "two trillion, one billion, twenty-one million, three hundred forty thousand, four hundred ten".