20123211110 has 8 divisors (see below), whose sum is σ = 36221780016. Its totient is φ = 8049284440.

The previous prime is 20123211103. The next prime is 20123211181. The reversal of 20123211110 is 1111232102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006160546 + ... + 1006160565.

It is an arithmetic number, because the mean of its divisors is an integer number (4527722502).

Almost surely, 2^20123211110 is an apocalyptic number.

20123211110 is a deficient number, since it is larger than the sum of its proper divisors (16098568906).

20123211110 is a wasteful number, since it uses less digits than its factorization.

20123211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012321118.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20123211110 its reverse (1111232102), we get a palindrome (21234443212).

The spelling of 20123211110 in words is "twenty billion, one hundred twenty-three million, two hundred eleven thousand, one hundred ten".