100123121011011 has 32 divisors (see below), whose sum is σ = 152841693312000. Its totient is φ = 57110795604480.

The previous prime is 100123121010973. The next prime is 100123121011019. The reversal of 100123121011011 is 110110121321001.

It is not a de Polignac number, because 100123121011011 - 2²² = 100123116816707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100123121011019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419422015 + ... + 419660663.

It is an arithmetic number, because the mean of its divisors is an integer number (4776302916000).

Almost surely, 2^{100123121011011} is an apocalyptic number.

100123121011011 is a deficient number, since it is larger than the sum of its proper divisors (52718572300989).

100123121011011 is a wasteful number, since it uses less digits than its factorization.

100123121011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274339.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 100123121011011 its reverse (110110121321001), we get a palindrome (210233242332012).

The spelling of 100123121011011 in words is "one hundred trillion, one hundred twenty-three billion, one hundred twenty-one million, eleven thousand, eleven".