911131213825 has 24 divisors (see below), whose sum is σ = 1296841590080. Its totient is φ = 622047384000.

The previous prime is 911131213807. The next prime is 911131213843. The reversal of 911131213825 is 528312131119.

It is an interprime number because it is at equal distance from previous prime (911131213807) and next prime (911131213843).

It is not a de Polignac number, because 911131213825 - 2⁷ = 911131213697 is a prime.

It is a super-2 number, since 2×911131213825² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11327751 + ... + 11407900.

Almost surely, 2^911131213825 is an apocalyptic number.

It is an amenable number.

911131213825 is a deficient number, since it is larger than the sum of its proper divisors (385710376255).

911131213825 is a wasteful number, since it uses less digits than its factorization.

911131213825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22735897 (or 22735892 counting only the distinct ones).

The product of its digits is 12960, while the sum is 37.

The spelling of 911131213825 in words is "nine hundred eleven billion, one hundred thirty-one million, two hundred thirteen thousand, eight hundred twenty-five".