10123211112 has 64 divisors (see below), whose sum is σ = 29025799680. Its totient is φ = 2882112192.

The previous prime is 10123211071. The next prime is 10123211143. The reversal of 10123211112 is 21111232101.

It is a junction number, because it is equal to n+sod(n) for n = 10123211091 and 10123211100.

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, 58918 + ... + 154005.

It is an arithmetic number, because the mean of its divisors is an integer number (453528120).

Almost surely, 2^10123211112 is an apocalyptic number.

10123211112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10123211112 is an abundant number, since it is smaller than the sum of its proper divisors (18902588568).

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

10123211112 is a wasteful number, since it uses less digits than its factorization.

10123211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213222 (or 213218 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10123211112 its reverse (21111232101), we get a palindrome (31234443213).

The spelling of 10123211112 in words is "ten billion, one hundred twenty-three million, two hundred eleven thousand, one hundred twelve".