1006263051631 has 4 divisors (see below), whose sum is σ = 1029664517992. Its totient is φ = 982861585272.

The previous prime is 1006263051571. The next prime is 1006263051653. The reversal of 1006263051631 is 1361503626001.

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 1006263051631 - 2⁹ = 1006263051119 is a prime.

It is a super-2 number, since 2×1006263051631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006263051931) 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, 11700733116 + ... + 11700733201.

It is an arithmetic number, because the mean of its divisors is an integer number (257416129498).

Almost surely, 2^{1006263051631} is an apocalyptic number.

1006263051631 is a deficient number, since it is larger than the sum of its proper divisors (23401466361).

1006263051631 is an equidigital number, since it uses as much as digits as its factorization.

1006263051631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23401466360.

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 1006263051631 its reverse (1361503626001), we get a palindrome (2367766677632).

The spelling of 1006263051631 in words is "one trillion, six billion, two hundred sixty-three million, fifty-one thousand, six hundred thirty-one".