20123112032412 has 12 divisors (see below), whose sum is σ = 46953928075656. Its totient is φ = 6707704010800.

The previous prime is 20123112032411. The next prime is 20123112032431. The reversal of 20123112032412 is 21423021132102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20123112032412² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123112032411) 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, 838463001339 + ... + 838463001362.

It is an arithmetic number, because the mean of its divisors is an integer number (3912827339638).

Almost surely, 2^{20123112032412} is an apocalyptic number.

It is an amenable number.

20123112032412 is an abundant number, since it is smaller than the sum of its proper divisors (26830816043244).

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

20123112032412 is a wasteful number, since it uses less digits than its factorization.

20123112032412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676926002708 (or 1676926002706 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20123112032412 its reverse (21423021132102), we get a palindrome (41546133164514).

The spelling of 20123112032412 in words is "twenty trillion, one hundred twenty-three billion, one hundred twelve million, thirty-two thousand, four hundred twelve".