3520404131 has 2 divisors, whose sum is σ = 3520404132. Its totient is φ = 3520404130.

The previous prime is 3520404119. The next prime is 3520404137. The reversal of 3520404131 is 1314040253.

3520404131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3520404131 - 2⁶ = 3520404067 is a prime.

It is a super-2 number, since 2×3520404131² = 24786490491123730322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3520404097 and 3520404106.

It is not a weakly prime, because it can be changed into another prime (3520404137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760202065 + 1760202066.

It is an arithmetic number, because the mean of its divisors is an integer number (1760202066).

Almost surely, 2^3520404131 is an apocalyptic number.

3520404131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520404131 is an equidigital number, since it uses as much as digits as its factorization.

3520404131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3520404131 is about 59332.9936123233. The cubic root of 3520404131 is about 1521.2391976442.

Adding to 3520404131 its reverse (1314040253), we get a palindrome (4834444384).

The spelling of 3520404131 in words is "three billion, five hundred twenty million, four hundred four thousand, one hundred thirty-one".