20100023012 has 48 divisors (see below), whose sum is σ = 38673586560. Its totient is φ = 9098293248.

The previous prime is 20100022951. The next prime is 20100023087. The reversal of 20100023012 is 21032000102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20100022984 and 20100023002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2010458 + ... + 2020430.

It is an arithmetic number, because the mean of its divisors is an integer number (805699720).

Almost surely, 2^20100023012 is an apocalyptic number.

It is an amenable number.

20100023012 is a deficient number, since it is larger than the sum of its proper divisors (18573563548).

20100023012 is a wasteful number, since it uses less digits than its factorization.

20100023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172 (or 11170 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20100023012 its reverse (21032000102), we get a palindrome (41132023114).

The spelling of 20100023012 in words is "twenty billion, one hundred million, twenty-three thousand, twelve".