1000623131 has 2 divisors, whose sum is σ = 1000623132. Its totient is φ = 1000623130.

The previous prime is 1000623101. The next prime is 1000623157. The reversal of 1000623131 is 1313260001.

1000623131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (1313260001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000623131 is a prime.

It is a super-2 number, since 2×1000623131² = 2002493300584486322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000623101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500311565 + 500311566.

It is an arithmetic number, because the mean of its divisors is an integer number (500311566).

Almost surely, 2^1000623131 is an apocalyptic number.

1000623131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000623131 is an equidigital number, since it uses as much as digits as its factorization.

1000623131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1000623131 is about 31632.6276335053. The cubic root of 1000623131 is about 1000.2076672047.

Adding to 1000623131 its reverse (1313260001), we get a palindrome (2313883132).

The spelling of 1000623131 in words is "one billion, six hundred twenty-three thousand, one hundred thirty-one".