20132312 has 16 divisors (see below), whose sum is σ = 38669400. Its totient is φ = 9820480.

The previous prime is 20132311. The next prime is 20132341. The reversal of 20132312 is 21323102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30362 + ... + 31017.

Almost surely, 2^20132312 is an apocalyptic number.

It is an amenable number.

20132312 is a deficient number, since it is larger than the sum of its proper divisors (18537088).

20132312 is a wasteful number, since it uses less digits than its factorization.

20132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61426 (or 61422 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20132312 is about 4486.9045008781. The cubic root of 20132312 is about 272.0390298664.

Adding to 20132312 its reverse (21323102), we get a palindrome (41455414).

The spelling of 20132312 in words is "twenty million, one hundred thirty-two thousand, three hundred twelve".