20110100121123 has 16 divisors (see below), whose sum is σ = 27880449632256. Its totient is φ = 12879555520320.

The previous prime is 20110100121119. The next prime is 20110100121127. The reversal of 20110100121123 is 32112100101102.

It is an interprime number because it is at equal distance from previous prime (20110100121119) and next prime (20110100121127).

It is not a de Polignac number, because 20110100121123 - 2² = 20110100121119 is a prime.

It is a super-2 number, since 2×20110100121123² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20110100121127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789175711 + ... + 789201192.

It is an arithmetic number, because the mean of its divisors is an integer number (1742528102016).

Almost surely, 2^{20110100121123} is an apocalyptic number.

20110100121123 is a deficient number, since it is larger than the sum of its proper divisors (7770349511133).

20110100121123 is a wasteful number, since it uses less digits than its factorization.

20110100121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578377074.

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

Adding to 20110100121123 its reverse (32112100101102), we get a palindrome (52222200222225).

The spelling of 20110100121123 in words is "twenty trillion, one hundred ten billion, one hundred million, one hundred twenty-one thousand, one hundred twenty-three".