2101230331123 has 16 divisors (see below), whose sum is σ = 2621205227520. Its totient is φ = 1636391404800.

The previous prime is 2101230331097. The next prime is 2101230331127. The reversal of 2101230331123 is 3211330321012.

It is a cyclic number.

It is not a de Polignac number, because 2101230331123 - 2²⁹ = 2100693460211 is a prime.

It is a super-2 number, since 2×2101230331123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101230331094 and 2101230331103.

It is not an unprimeable number, because it can be changed into a prime (2101230331127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7621438 + ... + 7892323.

It is an arithmetic number, because the mean of its divisors is an integer number (163825326720).

Almost surely, 2^{2101230331123} is an apocalyptic number.

2101230331123 is a deficient number, since it is larger than the sum of its proper divisors (519974896397).

2101230331123 is a wasteful number, since it uses less digits than its factorization.

2101230331123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15515538.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2101230331123 its reverse (3211330321012), we get a palindrome (5312560652135).

The spelling of 2101230331123 in words is "two trillion, one hundred one billion, two hundred thirty million, three hundred thirty-one thousand, one hundred twenty-three".