999911142132 has 96 divisors (see below), whose sum is σ = 2784049508352. Its totient is φ = 273101849856.

The previous prime is 999911142119. The next prime is 999911142149. The reversal of 999911142132 is 231241119999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3045153 + ... + 3357495.

It is an arithmetic number, because the mean of its divisors is an integer number (29000515712).

Almost surely, 2^999911142132 is an apocalyptic number.

999911142132 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999911142132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1392024754176).

999911142132 is an abundant number, since it is smaller than the sum of its proper divisors (1784138366220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999911142132 is a wasteful number, since it uses less digits than its factorization.

999911142132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314037 (or 314035 counting only the distinct ones).

The product of its digits is 314928, while the sum is 51.

The spelling of 999911142132 in words is "nine hundred ninety-nine billion, nine hundred eleven million, one hundred forty-two thousand, one hundred thirty-two".