1013135531 has 2 divisors, whose sum is σ = 1013135532. Its totient is φ = 1013135530.

The previous prime is 1013135509. The next prime is 1013135567. The reversal of 1013135531 is 1355313101.

It is a weak prime.

It is an emirp because it is prime and its reverse (1355313101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013135531 is a prime.

It is a super-2 number, since 2×1013135531² = 2052887208349303922, 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 = 1013135497 and 1013135506.

It is not a weakly prime, because it can be changed into another prime (1013135581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506567765 + 506567766.

It is an arithmetic number, because the mean of its divisors is an integer number (506567766).

Almost surely, 2^1013135531 is an apocalyptic number.

1013135531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013135531 is an equidigital number, since it uses as much as digits as its factorization.

1013135531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 1013135531 is about 31829.7899930238. The cubic root of 1013135531 is about 1004.3594776704.

Adding to 1013135531 its reverse (1355313101), we get a palindrome (2368448632).

The spelling of 1013135531 in words is "one billion, thirteen million, one hundred thirty-five thousand, five hundred thirty-one".