1013501231 has 2 divisors, whose sum is σ = 1013501232. Its totient is φ = 1013501230.

The previous prime is 1013501221. The next prime is 1013501311. The reversal of 1013501231 is 1321053101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013501231 is a prime.

It is a super-2 number, since 2×1013501231² = 2054369490477030722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013501221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506750615 + 506750616.

It is an arithmetic number, because the mean of its divisors is an integer number (506750616).

Almost surely, 2^1013501231 is an apocalyptic number.

1013501231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013501231 is an equidigital number, since it uses as much as digits as its factorization.

1013501231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1013501231 is about 31835.5340932110. The cubic root of 1013501231 is about 1004.4803072027.

Adding to 1013501231 its reverse (1321053101), we get a palindrome (2334554332).

The spelling of 1013501231 in words is "one billion, thirteen million, five hundred one thousand, two hundred thirty-one".