2231121030123 has 16 divisors (see below), whose sum is σ = 3070989315072. Its totient is φ = 1439339604000.

The previous prime is 2231121030079. The next prime is 2231121030133. The reversal of 2231121030123 is 3210301211322.

It is not a de Polignac number, because 2231121030123 - 2¹³ = 2231121021931 is a prime.

It is a super-3 number, since 3×2231121030123³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231121030123.

It is not an unprimeable number, because it can be changed into a prime (2231121030133) 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, 679168 + ... + 2218898.

It is an arithmetic number, because the mean of its divisors is an integer number (191936832192).

Almost surely, 2^{2231121030123} is an apocalyptic number.

2231121030123 is a deficient number, since it is larger than the sum of its proper divisors (839868284949).

2231121030123 is a wasteful number, since it uses less digits than its factorization.

2231121030123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555346.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2231121030123 its reverse (3210301211322), we get a palindrome (5441422241445).

The spelling of 2231121030123 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, thirty thousand, one hundred twenty-three".