11909959930 has 16 divisors (see below), whose sum is σ = 23386830624. Its totient is φ = 4330894480.

The previous prime is 11909959921. The next prime is 11909959939. The reversal of 11909959930 is 3995990911.

It is an interprime number because it is at equal distance from previous prime (11909959921) and next prime (11909959939).

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (11909959939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54136072 + ... + 54136291.

It is an arithmetic number, because the mean of its divisors is an integer number (1461676914).

Almost surely, 2^11909959930 is an apocalyptic number.

11909959930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11909959930 is a deficient number, since it is larger than the sum of its proper divisors (11476870694).

11909959930 is a wasteful number, since it uses less digits than its factorization.

11909959930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108272381.

The product of its (nonzero) digits is 885735, while the sum is 55.

The spelling of 11909959930 in words is "eleven billion, nine hundred nine million, nine hundred fifty-nine thousand, nine hundred thirty".