123002143111 has 32 divisors (see below), whose sum is σ = 134594006400. Its totient is φ = 111947673600.

The previous prime is 123002143081. The next prime is 123002143123. The reversal of 123002143111 is 111341200321.

It is a cyclic number.

It is not a de Polignac number, because 123002143111 - 2¹³ = 123002134919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123002143181) 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, 65530305 + ... + 65532181.

It is an arithmetic number, because the mean of its divisors is an integer number (4206062700).

Almost surely, 2^123002143111 is an apocalyptic number.

123002143111 is a deficient number, since it is larger than the sum of its proper divisors (11591863289).

123002143111 is a wasteful number, since it uses less digits than its factorization.

123002143111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123002143111 its reverse (111341200321), we get a palindrome (234343343432).

The spelling of 123002143111 in words is "one hundred twenty-three billion, two million, one hundred forty-three thousand, one hundred eleven".