40520202001 has 2 divisors, whose sum is σ = 40520202002. Its totient is φ = 40520202000.

The previous prime is 40520201993. The next prime is 40520202017. The reversal of 40520202001 is 10020202504.

40520202001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (40520202017) can be obtained adding 40520202001 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20499366976 + 20020835025 = 143176^2 + 141495^2 .

It is a cyclic number.

It is not a de Polignac number, because 40520202001 - 2³ = 40520201993 is a prime.

It is not a weakly prime, because it can be changed into another prime (40520202031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20260101000 + 20260101001.

It is an arithmetic number, because the mean of its divisors is an integer number (20260101001).

Almost surely, 2^40520202001 is an apocalyptic number.

It is an amenable number.

40520202001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40520202001 is an equidigital number, since it uses as much as digits as its factorization.

40520202001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 40520202001 its reverse (10020202504), we get a palindrome (50540404505).

The spelling of 40520202001 in words is "forty billion, five hundred twenty million, two hundred two thousand, one".