121123103102100 has 108 divisors (see below), whose sum is σ = 414167604701760. Its totient is φ = 29363176507200.

The previous prime is 121123103102087. The next prime is 121123103102101. The reversal of 121123103102100 is 1201301321121.

121123103102100 is a `hidden beast` number, since 1 + 2 + 112 + 31 + 0 + 310 + 210 + 0 = 666.

It is a super-2 number, since 2×121123103102100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123103102101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6117318540 + ... + 6117338339.

It is an arithmetic number, because the mean of its divisors is an integer number (3834885228720).

Almost surely, 2^{121123103102100} is an apocalyptic number.

121123103102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121123103102100 is an abundant number, since it is smaller than the sum of its proper divisors (293044501599660).

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

121123103102100 is a wasteful number, since it uses less digits than its factorization.

121123103102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12234656910 (or 12234656900 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121123103102100 its reverse (1201301321121), we get a palindrome (122324404423221).

The spelling of 121123103102100 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, one hundred three million, one hundred two thousand, one hundred".