20123000412 has 24 divisors (see below), whose sum is σ = 48222686736. Its totient is φ = 6526378368.

The previous prime is 20123000371. The next prime is 20123000437. The reversal of 20123000412 is 21400032102.

It is a junction number, because it is equal to n+sod(n) for n = 20123000391 and 20123000400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22660593 + ... + 22661480.

It is an arithmetic number, because the mean of its divisors is an integer number (2009278614).

Almost surely, 2^20123000412 is an apocalyptic number.

It is an amenable number.

20123000412 is an abundant number, since it is smaller than the sum of its proper divisors (28099686324).

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

20123000412 is a wasteful number, since it uses less digits than its factorization.

20123000412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45322117 (or 45322115 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20123000412 its reverse (21400032102), we get a palindrome (41523032514).

The spelling of 20123000412 in words is "twenty billion, one hundred twenty-three million, four hundred twelve", and thus it is an aban number.