11987752312 has 32 divisors (see below), whose sum is σ = 22603236480. Its totient is φ = 5960273760.

The previous prime is 11987752279. The next prime is 11987752313. The reversal of 11987752312 is 21325778911.

It is a super-3 number, since 3×11987752312³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11987752313) 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, 2568493 + ... + 2573155.

It is an arithmetic number, because the mean of its divisors is an integer number (706351140).

Almost surely, 2^11987752312 is an apocalyptic number.

It is an amenable number.

11987752312 is a deficient number, since it is larger than the sum of its proper divisors (10615484168).

11987752312 is a wasteful number, since it uses less digits than its factorization.

11987752312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6403 (or 6399 counting only the distinct ones).

The product of its digits is 211680, while the sum is 46.

The spelling of 11987752312 in words is "eleven billion, nine hundred eighty-seven million, seven hundred fifty-two thousand, three hundred twelve".