10520131345235 has 4 divisors (see below), whose sum is σ = 12624157614288. Its totient is φ = 8416105076184.

The previous prime is 10520131345231. The next prime is 10520131345259. The reversal of 10520131345235 is 53254313102501.

It is a happy number.

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 10520131345235 - 2² = 10520131345231 is a prime.

It is a super-2 number, since 2×10520131345235² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10520131345195 and 10520131345204.

It is not an unprimeable number, because it can be changed into a prime (10520131345231) 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, 1052013134519 + ... + 1052013134528.

It is an arithmetic number, because the mean of its divisors is an integer number (3156039403572).

Almost surely, 2^{10520131345235} is an apocalyptic number.

10520131345235 is a deficient number, since it is larger than the sum of its proper divisors (2104026269053).

10520131345235 is an equidigital number, since it uses as much as digits as its factorization.

10520131345235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104026269052.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 10520131345235 its reverse (53254313102501), we get a palindrome (63774444447736).

The spelling of 10520131345235 in words is "ten trillion, five hundred twenty billion, one hundred thirty-one million, three hundred forty-five thousand, two hundred thirty-five".