32011311312 has 120 divisors (see below), whose sum is σ = 96009224064. Its totient is φ = 9930615552.

The previous prime is 32011311301. The next prime is 32011311313. The reversal of 32011311312 is 21311311023.

32011311312 is a `hidden beast` number, since 32 + 0 + 11 + 311 + 312 = 666.

It is a super-2 number, since 2×32011311312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32011311313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8068 + ... + 253155.

Almost surely, 2^32011311312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32011311312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48004612032).

32011311312 is an abundant number, since it is smaller than the sum of its proper divisors (63997912752).

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

32011311312 is a wasteful number, since it uses less digits than its factorization.

32011311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261297 (or 261288 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 32011311312 its reverse (21311311023), we get a palindrome (53322622335).

The spelling of 32011311312 in words is "thirty-two billion, eleven million, three hundred eleven thousand, three hundred twelve".