2040721306207 has 4 divisors (see below), whose sum is σ = 2041669158480. Its totient is φ = 2039773453936.

The previous prime is 2040721306171. The next prime is 2040721306319. The reversal of 2040721306207 is 7026031270402.

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

It is a cyclic number.

It is not a de Polignac number, because 2040721306207 - 2¹⁹ = 2040720781919 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 (2040721306007) 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, 473922907 + ... + 473927212.

It is an arithmetic number, because the mean of its divisors is an integer number (510417289620).

Almost surely, 2^{2040721306207} is an apocalyptic number.

2040721306207 is a deficient number, since it is larger than the sum of its proper divisors (947852273).

2040721306207 is an equidigital number, since it uses as much as digits as its factorization.

2040721306207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947852272.

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 2040721306207 its reverse (7026031270402), we get a palindrome (9066752576609).

The spelling of 2040721306207 in words is "two trillion, forty billion, seven hundred twenty-one million, three hundred six thousand, two hundred seven".