2123111243141 has 16 divisors (see below), whose sum is σ = 2430096953856. Its totient is φ = 1817048059776.

The previous prime is 2123111243129. The next prime is 2123111243147. The reversal of 2123111243141 is 1413421113212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2123111243141 - 2²² = 2123107048837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123111243141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123111243147) 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, 17438420 + ... + 17559746.

It is an arithmetic number, because the mean of its divisors is an integer number (151881059616).

Almost surely, 2^{2123111243141} is an apocalyptic number.

It is an amenable number.

2123111243141 is a deficient number, since it is larger than the sum of its proper divisors (306985710715).

2123111243141 is a wasteful number, since it uses less digits than its factorization.

2123111243141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125108.

The product of its digits is 1152, while the sum is 26.

Adding to 2123111243141 its reverse (1413421113212), we get a palindrome (3536532356353).

The spelling of 2123111243141 in words is "two trillion, one hundred twenty-three billion, one hundred eleven million, two hundred forty-three thousand, one hundred forty-one".