20121232334 has 32 divisors (see below), whose sum is σ = 36538096896. Its totient is φ = 8112677760.

The previous prime is 20121232331. The next prime is 20121232349. The reversal of 20121232334 is 43323212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121232331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585677 + ... + 619079.

It is an arithmetic number, because the mean of its divisors is an integer number (1141815528).

Almost surely, 2^20121232334 is an apocalyptic number.

20121232334 is a deficient number, since it is larger than the sum of its proper divisors (16416864562).

20121232334 is a wasteful number, since it uses less digits than its factorization.

20121232334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35960.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20121232334 its reverse (43323212102), we get a palindrome (63444444436).

The spelling of 20121232334 in words is "twenty billion, one hundred twenty-one million, two hundred thirty-two thousand, three hundred thirty-four".