3520065208131 has 36 divisors (see below), whose sum is σ = 5322614824800. Its totient is φ = 2241555137184.

The previous prime is 3520065208109. The next prime is 3520065208147. The reversal of 3520065208131 is 1318025600253.

3520065208131 is a `hidden beast` number, since 3 + 5 + 20 + 0 + 6 + 520 + 81 + 31 = 666.

It is not a de Polignac number, because 3520065208131 - 2⁷ = 3520065208003 is a prime.

It is a super-2 number, since 2×3520065208131² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3520065208031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2909005 + ... + 3937313.

It is an arithmetic number, because the mean of its divisors is an integer number (147850411800).

Almost surely, 2^{3520065208131} is an apocalyptic number.

3520065208131 is a deficient number, since it is larger than the sum of its proper divisors (1802549616669).

3520065208131 is a wasteful number, since it uses less digits than its factorization.

3520065208131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029080 (or 1029054 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 3520065208131 in words is "three trillion, five hundred twenty billion, sixty-five million, two hundred eight thousand, one hundred thirty-one".