123403134111 has 16 divisors (see below), whose sum is σ = 171702364416. Its totient is φ = 78686790336.

The previous prime is 123403134103. The next prime is 123403134119. The reversal of 123403134111 is 111431304321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123403134103) and next prime (123403134119).

It is not a de Polignac number, because 123403134111 - 2³ = 123403134103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123403134119) 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, 1229811 + ... + 1326363.

It is an arithmetic number, because the mean of its divisors is an integer number (10731397776).

Almost surely, 2^123403134111 is an apocalyptic number.

123403134111 is a deficient number, since it is larger than the sum of its proper divisors (48299230305).

123403134111 is a wasteful number, since it uses less digits than its factorization.

123403134111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115102.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123403134111 its reverse (111431304321), we get a palindrome (234834438432).

The spelling of 123403134111 in words is "one hundred twenty-three billion, four hundred three million, one hundred thirty-four thousand, one hundred eleven".