23123001012 has 24 divisors (see below), whose sum is σ = 54037077696. Its totient is φ = 7695751488.

The previous prime is 23123000963. The next prime is 23123001023. The reversal of 23123001012 is 21010032132.

It is a junction number, because it is equal to n+sod(n) for n = 23123000982 and 23123001000.

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, 1481353 + ... + 1496880.

It is an arithmetic number, because the mean of its divisors is an integer number (2251544904).

Almost surely, 2^23123001012 is an apocalyptic number.

It is an amenable number.

23123001012 is an abundant number, since it is smaller than the sum of its proper divisors (30914076684).

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

23123001012 is a wasteful number, since it uses less digits than its factorization.

23123001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978887 (or 2978885 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23123001012 its reverse (21010032132), we get a palindrome (44133033144).

The spelling of 23123001012 in words is "twenty-three billion, one hundred twenty-three million, one thousand, twelve".