1012263226531 has 8 divisors (see below), whose sum is σ = 1014019855520. Its totient is φ = 1010507933952.

The previous prime is 1012263226459. The next prime is 1012263226633. The reversal of 1012263226531 is 1356223622101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012263226531 - 2²¹ = 1012261129379 is a prime.

It is a super-2 number, since 2×1012263226531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012263226031) 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 7 ways as a sum of consecutive naturals, for example, 1188115 + ... + 1853683.

It is an arithmetic number, because the mean of its divisors is an integer number (126752481940).

Almost surely, 2^{1012263226531} is an apocalyptic number.

1012263226531 is a deficient number, since it is larger than the sum of its proper divisors (1756628989).

1012263226531 is an equidigital number, since it uses as much as digits as its factorization.

1012263226531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668205.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 1012263226531 its reverse (1356223622101), we get a palindrome (2368486848632).

The spelling of 1012263226531 in words is "one trillion, twelve billion, two hundred sixty-three million, two hundred twenty-six thousand, five hundred thirty-one".