1001111425 has 12 divisors (see below), whose sum is σ = 1306714480. Its totient is φ = 758736720.

The previous prime is 1001111413. The next prime is 1001111459. The reversal of 1001111425 is 5241111001.

It is not a de Polignac number, because 1001111425 - 2²¹ = 999014273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001111399 and 1001111408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1053327 + ... + 1054276.

Almost surely, 2^1001111425 is an apocalyptic number.

It is an amenable number.

1001111425 is a deficient number, since it is larger than the sum of its proper divisors (305603055).

1001111425 is a wasteful number, since it uses less digits than its factorization.

1001111425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107632 (or 2107627 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1001111425 is about 31640.3448938219. The cubic root of 1001111425 is about 1000.3703378330.

Adding to 1001111425 its reverse (5241111001), we get a palindrome (6242222426).

The spelling of 1001111425 in words is "one billion, one million, one hundred eleven thousand, four hundred twenty-five".